Merge commit 'dev' into 'wip/cmake-merge'

Change-Id: I176c40d031be26a1dd1cf08843e448a660598783
author: Tobias Hunger <tobias.hunger@qt.io> 2019-04-16 16:32:08 +0200
committer: Tobias Hunger <tobias.hunger@qt.io> 2019-04-16 16:32:08 +0200
commit: 6630937e63ae5797487b86743a7733c8ae5cc42c (patch)
tree: 3d53dacf6430f9099e1fb20835881205de674961 /src/corelib/global
parent: 37ed6dae00640f9cc980ffda05347c12a7eb5d7e (diff)
parent: c7af193d2e49e9f10b86262e63d8d13abf72b5cf (diff)
32 files changed, 546 insertions, 510 deletions
diff --git a/src/corelib/global/archdetect.cpp b/src/corelib/global/archdetect.cpp
index 422df3ff90..66a5e074f6 100644
--- a/src/corelib/global/archdetect.cpp
+++ b/src/corelib/global/archdetect.cpp
@@ -4,7 +4,7 @@
 ** Copyright (C) 2016 Intel Corporation.
 ** Contact: https://www.qt.io/licensing/
 **
-** This file is part of the FOO module of the Qt Toolkit.
+** This file is part of the QtCore module of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:LGPL$
 ** Commercial License Usage
diff --git a/src/corelib/global/global.pri b/src/corelib/global/global.pri
index a4d132a4f4..428c674307 100644
--- a/src/corelib/global/global.pri
+++ b/src/corelib/global/global.pri
@@ -12,7 +12,6 @@ HEADERS +=  \
         global/qendian_p.h \
         global/qnumeric_p.h \
         global/qnumeric.h \
-        global/qfloat16_p.h \
         global/qfloat16.h \
         global/qglobalstatic.h \
         global/qlibraryinfo.h \
@@ -131,7 +130,7 @@ qtPrepareTool(QMAKE_QFLOAT16_TABLES, qfloat16-tables)
 
 qfloat16_tables.commands = $$QMAKE_QFLOAT16_TABLES ${QMAKE_FILE_OUT}
 qfloat16_tables.output = global/qfloat16tables.cpp
-qfloat16_tables.depends = $$QMAKE_QFLOAT16_TABLES
+qfloat16_tables.depends = $$QMAKE_QFLOAT16_TABLES_EXE
 qfloat16_tables.input = QMAKE_QFLOAT16_TABLES_GENERATE
 qfloat16_tables.variable_out = SOURCES
 QMAKE_EXTRA_COMPILERS += qfloat16_tables
diff --git a/src/corelib/global/minimum-linux_p.h b/src/corelib/global/minimum-linux_p.h
index bad2488b4d..5112015663 100644
--- a/src/corelib/global/minimum-linux_p.h
+++ b/src/corelib/global/minimum-linux_p.h
@@ -75,9 +75,18 @@ QT_BEGIN_NAMESPACE
  * - accept4                    2.6.28
  * - renameat2                  3.16                    QT_CONFIG(renameat2)
  * - getrandom                  3.17                    QT_CONFIG(getentropy)
+ * - statx                      4.11                    QT_CONFIG(statx)
  */
 
-#if QT_CONFIG(getentropy)
+#if QT_CONFIG(statx) && !QT_CONFIG(glibc)
+// if using glibc, the statx() function in sysdeps/unix/sysv/linux/statx.c
+// falls back to stat() for us.
+// (Using QT_CONFIG(glibc) instead of __GLIBC__ because the macros aren't
+// defined in assembler mode)
+#  define MINLINUX_MAJOR        4
+#  define MINLINUX_MINOR        11
+#  define MINLINUX_PATCH        0
+#elif QT_CONFIG(getentropy)
 #  define MINLINUX_MAJOR        3
 #  define MINLINUX_MINOR        17
 #  define MINLINUX_PATCH        0
diff --git a/src/corelib/global/qcompilerdetection.h b/src/corelib/global/qcompilerdetection.h
index 345ab9e8ad..e47f284a42 100644
--- a/src/corelib/global/qcompilerdetection.h
+++ b/src/corelib/global/qcompilerdetection.h
@@ -110,12 +110,6 @@
 #    define Q_CC_INTEL  __INTEL_COMPILER
 #  endif
 
-/* only defined for MSVC since that's the only compiler that actually optimizes for this */
-/* might get overridden further down when Q_COMPILER_NOEXCEPT is detected */
-#  ifdef __cplusplus
-#    define Q_DECL_NOTHROW  throw()
-#  endif
-
 #elif defined(__BORLANDC__) || defined(__TURBOC__)
 #  define Q_CC_BOR
 #  define Q_INLINE_TEMPLATE
@@ -1128,16 +1122,11 @@
 #ifdef Q_COMPILER_NOEXCEPT
 # define Q_DECL_NOEXCEPT noexcept
 # define Q_DECL_NOEXCEPT_EXPR(x) noexcept(x)
-# ifdef Q_DECL_NOTHROW
-#  undef Q_DECL_NOTHROW /* override with C++11 noexcept if available */
-# endif
 #else
 # define Q_DECL_NOEXCEPT
 # define Q_DECL_NOEXCEPT_EXPR(x)
 #endif
-#ifndef Q_DECL_NOTHROW
-# define Q_DECL_NOTHROW Q_DECL_NOEXCEPT
-#endif
+#define Q_DECL_NOTHROW Q_DECL_NOEXCEPT
 
 #if defined(Q_COMPILER_ALIGNOF)
 #  undef Q_ALIGNOF
diff --git a/src/corelib/global/qconfig-bootstrapped.h b/src/corelib/global/qconfig-bootstrapped.h
index 506c8513dc..10458e41d7 100644
--- a/src/corelib/global/qconfig-bootstrapped.h
+++ b/src/corelib/global/qconfig-bootstrapped.h
@@ -104,7 +104,6 @@
 #else
 # define QT_FEATURE_renameat2 -1
 #endif
-#define QT_FEATURE_settings -1
 #define QT_FEATURE_sharedmemory -1
 #define QT_FEATURE_slog2 -1
 #ifdef __GLIBC_PREREQ
@@ -123,17 +122,22 @@
 #define QT_NO_TRANSLATION
 #define QT_FEATURE_translation -1
 
+// rcc.pro will DEFINES+= this
+#ifndef QT_FEATURE_zstd
+#define QT_FEATURE_zstd -1
+#endif
+
 #ifdef QT_BUILD_QMAKE
 #define QT_FEATURE_commandlineparser -1
 #define QT_NO_COMPRESS
 #define QT_JSON_READONLY
+#define QT_FEATURE_settings 1
 #define QT_NO_STANDARDPATHS
-#define QT_NO_TEXTCODEC
 #define QT_FEATURE_textcodec -1
 #else
-#define QT_NO_CODECS
 #define QT_FEATURE_codecs -1
 #define QT_FEATURE_commandlineparser 1
+#define QT_FEATURE_settings -1
 #define QT_FEATURE_textcodec 1
 #endif
 
diff --git a/src/corelib/global/qendian.h b/src/corelib/global/qendian.h
index 1cc8a823d9..615f523888 100644
--- a/src/corelib/global/qendian.h
+++ b/src/corelib/global/qendian.h
@@ -41,6 +41,7 @@
 #ifndef QENDIAN_H
 #define QENDIAN_H
 
+#include <QtCore/qfloat16.h>
 #include <QtCore/qglobal.h>
 
 // include stdlib.h and hope that it defines __GLIBC__ for glibc-based systems
@@ -151,6 +152,31 @@ template <> inline Q_DECL_CONSTEXPR qint8 qbswap<qint8>(qint8 source)
     return source;
 }
 
+// floating specializations
+template<typename Float>
+Float qbswapFloatHelper(Float source)
+{
+    // memcpy call in qFromUnaligned is recognized by optimizer as a correct way of type prunning
+    auto temp = qFromUnaligned<typename QIntegerForSizeof<Float>::Unsigned>(&source);
+    temp = qbswap(temp);
+    return qFromUnaligned<Float>(&temp);
+}
+
+inline qfloat16 qbswap(qfloat16 source)
+{
+    return qbswapFloatHelper(source);
+}
+
+inline float qbswap(float source)
+{
+    return qbswapFloatHelper(source);
+}
+
+inline double qbswap(double source)
+{
+    return qbswapFloatHelper(source);
+}
+
 /*
  * qbswap(const T src, const void *dest);
  * Changes the byte order of \a src from big endian to little endian or vice versa
@@ -159,7 +185,7 @@ template <> inline Q_DECL_CONSTEXPR qint8 qbswap<qint8>(qint8 source)
 */
 template <typename T> inline void qbswap(const T src, void *dest)
 {
-    qToUnaligned<T>(qbswap<T>(src), dest);
+    qToUnaligned<T>(qbswap(src), dest);
 }
 
 template <int Size> void *qbswap(const void *source, qsizetype count, void *dest) noexcept;
@@ -178,9 +204,9 @@ template <typename T> inline Q_DECL_CONSTEXPR T qToBigEndian(T source)
 template <typename T> inline Q_DECL_CONSTEXPR T qFromBigEndian(T source)
 { return source; }
 template <typename T> inline Q_DECL_CONSTEXPR T qToLittleEndian(T source)
-{ return qbswap<T>(source); }
+{ return qbswap(source); }
 template <typename T> inline Q_DECL_CONSTEXPR T qFromLittleEndian(T source)
-{ return qbswap<T>(source); }
+{ return qbswap(source); }
 template <typename T> inline void qToBigEndian(T src, void *dest)
 { qToUnaligned<T>(src, dest); }
 template <typename T> inline void qToLittleEndian(T src, void *dest)
@@ -197,9 +223,9 @@ template <typename T> inline void qFromLittleEndian(const void *source, qsizetyp
 #else // Q_LITTLE_ENDIAN
 
 template <typename T> inline Q_DECL_CONSTEXPR T qToBigEndian(T source)
-{ return qbswap<T>(source); }
+{ return qbswap(source); }
 template <typename T> inline Q_DECL_CONSTEXPR T qFromBigEndian(T source)
-{ return qbswap<T>(source); }
+{ return qbswap(source); }
 template <typename T> inline Q_DECL_CONSTEXPR T qToLittleEndian(T source)
 { return source; }
 template <typename T> inline Q_DECL_CONSTEXPR T qFromLittleEndian(T source)
diff --git a/src/corelib/global/qflags.h b/src/corelib/global/qflags.h
index e9fee5f23e..65f4892472 100644
--- a/src/corelib/global/qflags.h
+++ b/src/corelib/global/qflags.h
@@ -54,21 +54,21 @@ class QFlag
 {
     int i;
 public:
-    Q_DECL_CONSTEXPR inline QFlag(int value) Q_DECL_NOTHROW : i(value) {}
-    Q_DECL_CONSTEXPR inline operator int() const Q_DECL_NOTHROW { return i; }
+    Q_DECL_CONSTEXPR inline QFlag(int value) noexcept : i(value) {}
+    Q_DECL_CONSTEXPR inline operator int() const noexcept { return i; }
 
 #if !defined(Q_CC_MSVC)
     // Microsoft Visual Studio has buggy behavior when it comes to
     // unsigned enums: even if the enum is unsigned, the enum tags are
     // always signed
 #  if !defined(__LP64__) && !defined(Q_CLANG_QDOC)
-    Q_DECL_CONSTEXPR inline QFlag(long value) Q_DECL_NOTHROW : i(int(value)) {}
-    Q_DECL_CONSTEXPR inline QFlag(ulong value) Q_DECL_NOTHROW : i(int(long(value))) {}
+    Q_DECL_CONSTEXPR inline QFlag(long value) noexcept : i(int(value)) {}
+    Q_DECL_CONSTEXPR inline QFlag(ulong value) noexcept : i(int(long(value))) {}
 #  endif
-    Q_DECL_CONSTEXPR inline QFlag(uint value) Q_DECL_NOTHROW : i(int(value)) {}
-    Q_DECL_CONSTEXPR inline QFlag(short value) Q_DECL_NOTHROW : i(int(value)) {}
-    Q_DECL_CONSTEXPR inline QFlag(ushort value) Q_DECL_NOTHROW : i(int(uint(value))) {}
-    Q_DECL_CONSTEXPR inline operator uint() const Q_DECL_NOTHROW { return uint(i); }
+    Q_DECL_CONSTEXPR inline QFlag(uint value) noexcept : i(int(value)) {}
+    Q_DECL_CONSTEXPR inline QFlag(short value) noexcept : i(int(value)) {}
+    Q_DECL_CONSTEXPR inline QFlag(ushort value) noexcept : i(int(uint(value))) {}
+    Q_DECL_CONSTEXPR inline operator uint() const noexcept { return uint(i); }
 #endif
 };
 Q_DECLARE_TYPEINFO(QFlag, Q_PRIMITIVE_TYPE);
@@ -77,12 +77,12 @@ class QIncompatibleFlag
 {
     int i;
 public:
-    Q_DECL_CONSTEXPR inline explicit QIncompatibleFlag(int i) Q_DECL_NOTHROW;
-    Q_DECL_CONSTEXPR inline operator int() const Q_DECL_NOTHROW { return i; }
+    Q_DECL_CONSTEXPR inline explicit QIncompatibleFlag(int i) noexcept;
+    Q_DECL_CONSTEXPR inline operator int() const noexcept { return i; }
 };
 Q_DECLARE_TYPEINFO(QIncompatibleFlag, Q_PRIMITIVE_TYPE);
 
-Q_DECL_CONSTEXPR inline QIncompatibleFlag::QIncompatibleFlag(int value) Q_DECL_NOTHROW : i(value) {}
+Q_DECL_CONSTEXPR inline QIncompatibleFlag::QIncompatibleFlag(int value) noexcept : i(value) {}
 
 
 #ifndef Q_NO_TYPESAFE_FLAGS
@@ -117,38 +117,38 @@ public:
     Q_DECL_CONSTEXPR inline QFlags(const QFlags &other);
     Q_DECL_CONSTEXPR inline QFlags &operator=(const QFlags &other);
 #endif
-    Q_DECL_CONSTEXPR inline QFlags(Enum flags) Q_DECL_NOTHROW : i(Int(flags)) {}
-    Q_DECL_CONSTEXPR inline QFlags(Zero = Q_NULLPTR) Q_DECL_NOTHROW : i(0) {}
-    Q_DECL_CONSTEXPR inline QFlags(QFlag flag) Q_DECL_NOTHROW : i(flag) {}
+    Q_DECL_CONSTEXPR inline QFlags(Enum flags) noexcept : i(Int(flags)) {}
+    Q_DECL_CONSTEXPR inline QFlags(Zero = nullptr) noexcept : i(0) {}
+    Q_DECL_CONSTEXPR inline QFlags(QFlag flag) noexcept : i(flag) {}
 
 #ifdef Q_COMPILER_INITIALIZER_LISTS
-    Q_DECL_CONSTEXPR inline QFlags(std::initializer_list<Enum> flags) Q_DECL_NOTHROW
+    Q_DECL_CONSTEXPR inline QFlags(std::initializer_list<Enum> flags) noexcept
         : i(initializer_list_helper(flags.begin(), flags.end())) {}
 #endif
 
-    Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator&=(int mask) Q_DECL_NOTHROW { i &= mask; return *this; }
-    Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator&=(uint mask) Q_DECL_NOTHROW { i &= mask; return *this; }
-    Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator&=(Enum mask) Q_DECL_NOTHROW { i &= Int(mask); return *this; }
-    Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator|=(QFlags other) Q_DECL_NOTHROW { i |= other.i; return *this; }
-    Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator|=(Enum other) Q_DECL_NOTHROW { i |= Int(other); return *this; }
-    Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator^=(QFlags other) Q_DECL_NOTHROW { i ^= other.i; return *this; }
-    Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator^=(Enum other) Q_DECL_NOTHROW { i ^= Int(other); return *this; }
-
-    Q_DECL_CONSTEXPR inline operator Int() const Q_DECL_NOTHROW { return i; }
-
-    Q_DECL_CONSTEXPR inline QFlags operator|(QFlags other) const Q_DECL_NOTHROW { return QFlags(QFlag(i | other.i)); }
-    Q_DECL_CONSTEXPR inline QFlags operator|(Enum other) const Q_DECL_NOTHROW { return QFlags(QFlag(i | Int(other))); }
-    Q_DECL_CONSTEXPR inline QFlags operator^(QFlags other) const Q_DECL_NOTHROW { return QFlags(QFlag(i ^ other.i)); }
-    Q_DECL_CONSTEXPR inline QFlags operator^(Enum other) const Q_DECL_NOTHROW { return QFlags(QFlag(i ^ Int(other))); }
-    Q_DECL_CONSTEXPR inline QFlags operator&(int mask) const Q_DECL_NOTHROW { return QFlags(QFlag(i & mask)); }
-    Q_DECL_CONSTEXPR inline QFlags operator&(uint mask) const Q_DECL_NOTHROW { return QFlags(QFlag(i & mask)); }
-    Q_DECL_CONSTEXPR inline QFlags operator&(Enum other) const Q_DECL_NOTHROW { return QFlags(QFlag(i & Int(other))); }
-    Q_DECL_CONSTEXPR inline QFlags operator~() const Q_DECL_NOTHROW { return QFlags(QFlag(~i)); }
-
-    Q_DECL_CONSTEXPR inline bool operator!() const Q_DECL_NOTHROW { return !i; }
-
-    Q_DECL_CONSTEXPR inline bool testFlag(Enum flag) const Q_DECL_NOTHROW { return (i & Int(flag)) == Int(flag) && (Int(flag) != 0 || i == Int(flag) ); }
-    Q_DECL_RELAXED_CONSTEXPR inline QFlags &setFlag(Enum flag, bool on = true) Q_DECL_NOTHROW
+    Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator&=(int mask) noexcept { i &= mask; return *this; }
+    Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator&=(uint mask) noexcept { i &= mask; return *this; }
+    Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator&=(Enum mask) noexcept { i &= Int(mask); return *this; }
+    Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator|=(QFlags other) noexcept { i |= other.i; return *this; }
+    Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator|=(Enum other) noexcept { i |= Int(other); return *this; }
+    Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator^=(QFlags other) noexcept { i ^= other.i; return *this; }
+    Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator^=(Enum other) noexcept { i ^= Int(other); return *this; }
+
+    Q_DECL_CONSTEXPR inline operator Int() const noexcept { return i; }
+
+    Q_DECL_CONSTEXPR inline QFlags operator|(QFlags other) const noexcept { return QFlags(QFlag(i | other.i)); }
+    Q_DECL_CONSTEXPR inline QFlags operator|(Enum other) const noexcept { return QFlags(QFlag(i | Int(other))); }
+    Q_DECL_CONSTEXPR inline QFlags operator^(QFlags other) const noexcept { return QFlags(QFlag(i ^ other.i)); }
+    Q_DECL_CONSTEXPR inline QFlags operator^(Enum other) const noexcept { return QFlags(QFlag(i ^ Int(other))); }
+    Q_DECL_CONSTEXPR inline QFlags operator&(int mask) const noexcept { return QFlags(QFlag(i & mask)); }
+    Q_DECL_CONSTEXPR inline QFlags operator&(uint mask) const noexcept { return QFlags(QFlag(i & mask)); }
+    Q_DECL_CONSTEXPR inline QFlags operator&(Enum other) const noexcept { return QFlags(QFlag(i & Int(other))); }
+    Q_DECL_CONSTEXPR inline QFlags operator~() const noexcept { return QFlags(QFlag(~i)); }
+
+    Q_DECL_CONSTEXPR inline bool operator!() const noexcept { return !i; }
+
+    Q_DECL_CONSTEXPR inline bool testFlag(Enum flag) const noexcept { return (i & Int(flag)) == Int(flag) && (Int(flag) != 0 || i == Int(flag) ); }
+    Q_DECL_RELAXED_CONSTEXPR inline QFlags &setFlag(Enum flag, bool on = true) noexcept
     {
         return on ? (*this |= flag) : (*this &= ~Int(flag));
     }
@@ -157,7 +157,7 @@ private:
 #ifdef Q_COMPILER_INITIALIZER_LISTS
     Q_DECL_CONSTEXPR static inline Int initializer_list_helper(typename std::initializer_list<Enum>::const_iterator it,
                                                                typename std::initializer_list<Enum>::const_iterator end)
-    Q_DECL_NOTHROW
+    noexcept
     {
         return (it == end ? Int(0) : (Int(*it) | initializer_list_helper(it + 1, end)));
     }
@@ -172,13 +172,13 @@ typedef QFlags<Enum> Flags;
 #endif
 
 #define Q_DECLARE_INCOMPATIBLE_FLAGS(Flags) \
-Q_DECL_CONSTEXPR inline QIncompatibleFlag operator|(Flags::enum_type f1, int f2) Q_DECL_NOTHROW \
+Q_DECL_CONSTEXPR inline QIncompatibleFlag operator|(Flags::enum_type f1, int f2) noexcept \
 { return QIncompatibleFlag(int(f1) | f2); }
 
 #define Q_DECLARE_OPERATORS_FOR_FLAGS(Flags) \
-Q_DECL_CONSTEXPR inline QFlags<Flags::enum_type> operator|(Flags::enum_type f1, Flags::enum_type f2) Q_DECL_NOTHROW \
+Q_DECL_CONSTEXPR inline QFlags<Flags::enum_type> operator|(Flags::enum_type f1, Flags::enum_type f2) noexcept \
 { return QFlags<Flags::enum_type>(f1) | f2; } \
-Q_DECL_CONSTEXPR inline QFlags<Flags::enum_type> operator|(Flags::enum_type f1, QFlags<Flags::enum_type> f2) Q_DECL_NOTHROW \
+Q_DECL_CONSTEXPR inline QFlags<Flags::enum_type> operator|(Flags::enum_type f1, QFlags<Flags::enum_type> f2) noexcept \
 { return f2 | f1; } Q_DECLARE_INCOMPATIBLE_FLAGS(Flags)
 
 
diff --git a/src/corelib/global/qfloat16.cpp b/src/corelib/global/qfloat16.cpp
index fd608efe55..680268c59b 100644
--- a/src/corelib/global/qfloat16.cpp
+++ b/src/corelib/global/qfloat16.cpp
@@ -37,7 +37,7 @@
 **
 ****************************************************************************/
 
-#include "qfloat16_p.h"
+#include "qfloat16.h"
 #include "private/qsimd_p.h"
 
 QT_BEGIN_NAMESPACE
@@ -65,28 +65,31 @@ QT_BEGIN_NAMESPACE
 */
 
 /*!
-    Returns true if the \c qfloat16 \a {f} is equivalent to infinity.
+    \fn bool qIsInf(qfloat16 f)
     \relates <QFloat16>
 
+    Returns true if the \c qfloat16 \a {f} is equivalent to infinity.
+
     \sa qIsInf
 */
-Q_REQUIRED_RESULT bool qIsInf(qfloat16 f) Q_DECL_NOTHROW { return qt_is_inf(f); }
 
 /*!
-    Returns true if the \c qfloat16 \a {f} is not a number (NaN).
+    \fn bool qIsNaN(qfloat16 f)
     \relates <QFloat16>
 
+    Returns true if the \c qfloat16 \a {f} is not a number (NaN).
+
     \sa qIsNaN
 */
-Q_REQUIRED_RESULT bool qIsNaN(qfloat16 f) Q_DECL_NOTHROW { return qt_is_nan(f); }
 
 /*!
-    Returns true if the \c qfloat16 \a {f} is a finite number.
+    \fn bool qIsFinite(qfloat16 f)
     \relates <QFloat16>
 
+    Returns true if the \c qfloat16 \a {f} is a finite number.
+
     \sa qIsFinite
 */
-Q_REQUIRED_RESULT bool qIsFinite(qfloat16 f) Q_DECL_NOTHROW { return qt_is_finite(f); }
 
 /*! \fn int qRound(qfloat16 value)
     \relates <QFloat16>
@@ -129,8 +132,8 @@ extern "C" {
 #  define f16cextern    extern
 #endif
 
-f16cextern void qFloatToFloat16_fast(quint16 *out, const float *in, qsizetype len) Q_DECL_NOTHROW;
-f16cextern void qFloatFromFloat16_fast(float *out, const quint16 *in, qsizetype len) Q_DECL_NOTHROW;
+f16cextern void qFloatToFloat16_fast(quint16 *out, const float *in, qsizetype len) noexcept;
+f16cextern void qFloatFromFloat16_fast(float *out, const quint16 *in, qsizetype len) noexcept;
 
 #undef f16cextern
 }
@@ -141,7 +144,7 @@ static inline bool hasFastF16()
     return true;
 }
 
-static void qFloatToFloat16_fast(quint16 *out, const float *in, qsizetype len) Q_DECL_NOTHROW
+static void qFloatToFloat16_fast(quint16 *out, const float *in, qsizetype len) noexcept
 {
     __fp16 *out_f16 = reinterpret_cast<__fp16 *>(out);
     qsizetype i = 0;
@@ -151,7 +154,7 @@ static void qFloatToFloat16_fast(quint16 *out, const float *in, qsizetype len) Q
         out_f16[i] = __fp16(in[i]);
 }
 
-static void qFloatFromFloat16_fast(float *out, const quint16 *in, qsizetype len) Q_DECL_NOTHROW
+static void qFloatFromFloat16_fast(float *out, const quint16 *in, qsizetype len) noexcept
 {
     const __fp16 *in_f16 = reinterpret_cast<const __fp16 *>(in);
     qsizetype i = 0;
@@ -166,12 +169,12 @@ static inline bool hasFastF16()
     return false;
 }
 
-static void qFloatToFloat16_fast(quint16 *, const float *, qsizetype) Q_DECL_NOTHROW
+static void qFloatToFloat16_fast(quint16 *, const float *, qsizetype) noexcept
 {
     Q_UNREACHABLE();
 }
 
-static void qFloatFromFloat16_fast(float *, const quint16 *, qsizetype) Q_DECL_NOTHROW
+static void qFloatFromFloat16_fast(float *, const quint16 *, qsizetype) noexcept
 {
     Q_UNREACHABLE();
 }
@@ -183,7 +186,7 @@ static void qFloatFromFloat16_fast(float *, const quint16 *, qsizetype) Q_DECL_N
     Converts \a len floats from \a in to qfloat16 and stores them in \a out.
     Both \a in and \a out must have \a len allocated entries.
 */
-Q_CORE_EXPORT void qFloatToFloat16(qfloat16 *out, const float *in, qsizetype len) Q_DECL_NOTHROW
+Q_CORE_EXPORT void qFloatToFloat16(qfloat16 *out, const float *in, qsizetype len) noexcept
 {
     if (hasFastF16())
         return qFloatToFloat16_fast(reinterpret_cast<quint16 *>(out), in, len);
@@ -199,7 +202,7 @@ Q_CORE_EXPORT void qFloatToFloat16(qfloat16 *out, const float *in, qsizetype len
     Converts \a len qfloat16 from \a in to floats and stores them in \a out.
     Both \a in and \a out must have \a len allocated entries.
 */
-Q_CORE_EXPORT void qFloatFromFloat16(float *out, const qfloat16 *in, qsizetype len) Q_DECL_NOTHROW
+Q_CORE_EXPORT void qFloatFromFloat16(float *out, const qfloat16 *in, qsizetype len) noexcept
 {
     if (hasFastF16())
         return qFloatFromFloat16_fast(out, reinterpret_cast<const quint16 *>(in), len);
diff --git a/src/corelib/global/qfloat16.h b/src/corelib/global/qfloat16.h
index a8befd7adb..243aea98be 100644
--- a/src/corelib/global/qfloat16.h
+++ b/src/corelib/global/qfloat16.h
@@ -67,12 +67,14 @@ QT_BEGIN_NAMESPACE
 class qfloat16
 {
 public:
-#ifndef Q_QDOC
-    Q_DECL_CONSTEXPR inline qfloat16() Q_DECL_NOTHROW : b16(0) { }
-    inline qfloat16(float f) Q_DECL_NOTHROW;
-    inline operator float() const Q_DECL_NOTHROW;
-#endif
-
+    constexpr inline qfloat16() noexcept : b16(0) {}
+    inline qfloat16(float f) noexcept;
+    inline operator float() const noexcept;
+
+    // Support for qIs{Inf,NaN,Finite}:
+    bool isInf() const noexcept { return ((b16 >> 8) & 0x7e) == 0x7c; }
+    bool isNaN() const noexcept { return ((b16 >> 8) & 0x7e) == 0x7e; }
+    bool isFinite() const noexcept { return ((b16 >> 8) & 0x7c) != 0x7c; }
 private:
     quint16 b16;
 
@@ -82,27 +84,29 @@ private:
     Q_CORE_EXPORT static const quint32 basetable[];
     Q_CORE_EXPORT static const quint32 shifttable[];
 
-    friend bool qIsNull(qfloat16 f) Q_DECL_NOTHROW;
-    friend qfloat16 operator-(qfloat16 a) Q_DECL_NOTHROW;
+    friend bool qIsNull(qfloat16 f) noexcept;
+    friend qfloat16 operator-(qfloat16 a) noexcept;
 };
 
 Q_DECLARE_TYPEINFO(qfloat16, Q_PRIMITIVE_TYPE);
 
-Q_CORE_EXPORT void qFloatToFloat16(qfloat16 *, const float *, qsizetype length) Q_DECL_NOTHROW;
-Q_CORE_EXPORT void qFloatFromFloat16(float *, const qfloat16 *, qsizetype length) Q_DECL_NOTHROW;
+Q_CORE_EXPORT void qFloatToFloat16(qfloat16 *, const float *, qsizetype length) noexcept;
+Q_CORE_EXPORT void qFloatFromFloat16(float *, const qfloat16 *, qsizetype length) noexcept;
 
-Q_REQUIRED_RESULT Q_CORE_EXPORT bool qIsInf(qfloat16 f) Q_DECL_NOTHROW;    // complements qnumeric.h
-Q_REQUIRED_RESULT Q_CORE_EXPORT bool qIsNaN(qfloat16 f) Q_DECL_NOTHROW;    // complements qnumeric.h
-Q_REQUIRED_RESULT Q_CORE_EXPORT bool qIsFinite(qfloat16 f) Q_DECL_NOTHROW; // complements qnumeric.h
+// Complement qnumeric.h:
+Q_REQUIRED_RESULT inline bool qIsInf(qfloat16 f) noexcept { return f.isInf(); }
+Q_REQUIRED_RESULT inline bool qIsNaN(qfloat16 f) noexcept { return f.isNaN(); }
+Q_REQUIRED_RESULT inline bool qIsFinite(qfloat16 f) noexcept { return f.isFinite(); }
+// Q_REQUIRED_RESULT quint32 qFloatDistance(qfloat16 a, qfloat16 b);
 
 // The remainder of these utility functions complement qglobal.h
-Q_REQUIRED_RESULT inline int qRound(qfloat16 d) Q_DECL_NOTHROW
+Q_REQUIRED_RESULT inline int qRound(qfloat16 d) noexcept
 { return qRound(static_cast<float>(d)); }
 
-Q_REQUIRED_RESULT inline qint64 qRound64(qfloat16 d) Q_DECL_NOTHROW
+Q_REQUIRED_RESULT inline qint64 qRound64(qfloat16 d) noexcept
 { return qRound64(static_cast<float>(d)); }
 
-Q_REQUIRED_RESULT inline bool qFuzzyCompare(qfloat16 p1, qfloat16 p2) Q_DECL_NOTHROW
+Q_REQUIRED_RESULT inline bool qFuzzyCompare(qfloat16 p1, qfloat16 p2) noexcept
 {
     float f1 = static_cast<float>(p1);
     float f2 = static_cast<float>(p2);
@@ -115,18 +119,19 @@ Q_REQUIRED_RESULT inline bool qFuzzyCompare(qfloat16 p1, qfloat16 p2) Q_DECL_NOT
     return (qAbs(f1 - f2) * 102.5f <= qMin(qAbs(f1), qAbs(f2)));
 }
 
-Q_REQUIRED_RESULT inline bool qIsNull(qfloat16 f) Q_DECL_NOTHROW
+Q_REQUIRED_RESULT inline bool qIsNull(qfloat16 f) noexcept
 {
     return (f.b16 & static_cast<quint16>(0x7fff)) == 0;
 }
 
-inline int qIntCast(qfloat16 f) Q_DECL_NOTHROW
+inline int qIntCast(qfloat16 f) noexcept
 { return int(static_cast<float>(f)); }
 
+#ifndef Q_QDOC
 QT_WARNING_PUSH
 QT_WARNING_DISABLE_CLANG("-Wc99-extensions")
 QT_WARNING_DISABLE_GCC("-Wold-style-cast")
-inline qfloat16::qfloat16(float f) Q_DECL_NOTHROW
+inline qfloat16::qfloat16(float f) noexcept
 {
 #if defined(QT_COMPILER_SUPPORTS_F16C) && defined(__F16C__)
     __m128 packsingle = _mm_set_ss(f);
@@ -144,7 +149,7 @@ inline qfloat16::qfloat16(float f) Q_DECL_NOTHROW
 }
 QT_WARNING_POP
 
-inline qfloat16::operator float() const Q_DECL_NOTHROW
+inline qfloat16::operator float() const noexcept
 {
 #if defined(QT_COMPILER_SUPPORTS_F16C) && defined(__F16C__)
     __m128i packhalf = _mm_cvtsi32_si128(b16);
@@ -162,24 +167,25 @@ inline qfloat16::operator float() const Q_DECL_NOTHROW
     return f;
 #endif
 }
+#endif
 
-inline qfloat16 operator-(qfloat16 a) Q_DECL_NOTHROW
+inline qfloat16 operator-(qfloat16 a) noexcept
 {
     qfloat16 f;
     f.b16 = a.b16 ^ quint16(0x8000);
     return f;
 }
 
-inline qfloat16 operator+(qfloat16 a, qfloat16 b) Q_DECL_NOTHROW { return qfloat16(static_cast<float>(a) + static_cast<float>(b)); }
-inline qfloat16 operator-(qfloat16 a, qfloat16 b) Q_DECL_NOTHROW { return qfloat16(static_cast<float>(a) - static_cast<float>(b)); }
-inline qfloat16 operator*(qfloat16 a, qfloat16 b) Q_DECL_NOTHROW { return qfloat16(static_cast<float>(a) * static_cast<float>(b)); }
-inline qfloat16 operator/(qfloat16 a, qfloat16 b) Q_DECL_NOTHROW { return qfloat16(static_cast<float>(a) / static_cast<float>(b)); }
+inline qfloat16 operator+(qfloat16 a, qfloat16 b) noexcept { return qfloat16(static_cast<float>(a) + static_cast<float>(b)); }
+inline qfloat16 operator-(qfloat16 a, qfloat16 b) noexcept { return qfloat16(static_cast<float>(a) - static_cast<float>(b)); }
+inline qfloat16 operator*(qfloat16 a, qfloat16 b) noexcept { return qfloat16(static_cast<float>(a) * static_cast<float>(b)); }
+inline qfloat16 operator/(qfloat16 a, qfloat16 b) noexcept { return qfloat16(static_cast<float>(a) / static_cast<float>(b)); }
 
 #define QF16_MAKE_ARITH_OP_FP(FP, OP) \
-    inline FP operator OP(qfloat16 lhs, FP rhs) Q_DECL_NOTHROW { return static_cast<FP>(lhs) OP rhs; } \
-    inline FP operator OP(FP lhs, qfloat16 rhs) Q_DECL_NOTHROW { return lhs OP static_cast<FP>(rhs); }
+    inline FP operator OP(qfloat16 lhs, FP rhs) noexcept { return static_cast<FP>(lhs) OP rhs; } \
+    inline FP operator OP(FP lhs, qfloat16 rhs) noexcept { return lhs OP static_cast<FP>(rhs); }
 #define QF16_MAKE_ARITH_OP_EQ_FP(FP, OP_EQ, OP) \
-    inline qfloat16& operator OP_EQ(qfloat16& lhs, FP rhs) Q_DECL_NOTHROW \
+    inline qfloat16& operator OP_EQ(qfloat16& lhs, FP rhs) noexcept \
     { lhs = qfloat16(float(static_cast<FP>(lhs) OP rhs)); return lhs; }
 #define QF16_MAKE_ARITH_OP(FP) \
     QF16_MAKE_ARITH_OP_FP(FP, +) \
@@ -197,8 +203,8 @@ QF16_MAKE_ARITH_OP(float)
 #undef QF16_MAKE_ARITH_OP_FP
 
 #define QF16_MAKE_ARITH_OP_INT(OP) \
-    inline double operator OP(qfloat16 lhs, int rhs) Q_DECL_NOTHROW { return static_cast<double>(lhs) OP rhs; } \
-    inline double operator OP(int lhs, qfloat16 rhs) Q_DECL_NOTHROW { return lhs OP static_cast<double>(rhs); }
+    inline double operator OP(qfloat16 lhs, int rhs) noexcept { return static_cast<double>(lhs) OP rhs; } \
+    inline double operator OP(int lhs, qfloat16 rhs) noexcept { return lhs OP static_cast<double>(rhs); }
 QF16_MAKE_ARITH_OP_INT(+)
 QF16_MAKE_ARITH_OP_INT(-)
 QF16_MAKE_ARITH_OP_INT(*)
@@ -209,16 +215,16 @@ QT_WARNING_PUSH
 QT_WARNING_DISABLE_CLANG("-Wfloat-equal")
 QT_WARNING_DISABLE_GCC("-Wfloat-equal")
 
-inline bool operator>(qfloat16 a, qfloat16 b)  Q_DECL_NOTHROW { return static_cast<float>(a) >  static_cast<float>(b); }
-inline bool operator<(qfloat16 a, qfloat16 b)  Q_DECL_NOTHROW { return static_cast<float>(a) <  static_cast<float>(b); }
-inline bool operator>=(qfloat16 a, qfloat16 b) Q_DECL_NOTHROW { return static_cast<float>(a) >= static_cast<float>(b); }
-inline bool operator<=(qfloat16 a, qfloat16 b) Q_DECL_NOTHROW { return static_cast<float>(a) <= static_cast<float>(b); }
-inline bool operator==(qfloat16 a, qfloat16 b) Q_DECL_NOTHROW { return static_cast<float>(a) == static_cast<float>(b); }
-inline bool operator!=(qfloat16 a, qfloat16 b) Q_DECL_NOTHROW { return static_cast<float>(a) != static_cast<float>(b); }
+inline bool operator>(qfloat16 a, qfloat16 b)  noexcept { return static_cast<float>(a) >  static_cast<float>(b); }
+inline bool operator<(qfloat16 a, qfloat16 b)  noexcept { return static_cast<float>(a) <  static_cast<float>(b); }
+inline bool operator>=(qfloat16 a, qfloat16 b) noexcept { return static_cast<float>(a) >= static_cast<float>(b); }
+inline bool operator<=(qfloat16 a, qfloat16 b) noexcept { return static_cast<float>(a) <= static_cast<float>(b); }
+inline bool operator==(qfloat16 a, qfloat16 b) noexcept { return static_cast<float>(a) == static_cast<float>(b); }
+inline bool operator!=(qfloat16 a, qfloat16 b) noexcept { return static_cast<float>(a) != static_cast<float>(b); }
 
 #define QF16_MAKE_BOOL_OP_FP(FP, OP) \
-    inline bool operator OP(qfloat16 lhs, FP rhs) Q_DECL_NOTHROW { return static_cast<FP>(lhs) OP rhs; } \
-    inline bool operator OP(FP lhs, qfloat16 rhs) Q_DECL_NOTHROW { return lhs OP static_cast<FP>(rhs); }
+    inline bool operator OP(qfloat16 lhs, FP rhs) noexcept { return static_cast<FP>(lhs) OP rhs; } \
+    inline bool operator OP(FP lhs, qfloat16 rhs) noexcept { return lhs OP static_cast<FP>(rhs); }
 #define QF16_MAKE_BOOL_OP(FP) \
     QF16_MAKE_BOOL_OP_FP(FP, <) \
     QF16_MAKE_BOOL_OP_FP(FP, >) \
@@ -233,8 +239,8 @@ QF16_MAKE_BOOL_OP(float)
 #undef QF16_MAKE_BOOL_OP_FP
 
 #define QF16_MAKE_BOOL_OP_INT(OP) \
-    inline bool operator OP(qfloat16 a, int b) Q_DECL_NOTHROW { return static_cast<float>(a) OP b; } \
-    inline bool operator OP(int a, qfloat16 b) Q_DECL_NOTHROW { return a OP static_cast<float>(b); }
+    inline bool operator OP(qfloat16 a, int b) noexcept { return static_cast<float>(a) OP b; } \
+    inline bool operator OP(int a, qfloat16 b) noexcept { return a OP static_cast<float>(b); }
 QF16_MAKE_BOOL_OP_INT(>)
 QF16_MAKE_BOOL_OP_INT(<)
 QF16_MAKE_BOOL_OP_INT(>=)
@@ -248,7 +254,7 @@ QT_WARNING_POP
 /*!
   \internal
 */
-Q_REQUIRED_RESULT inline bool qFuzzyIsNull(qfloat16 f) Q_DECL_NOTHROW
+Q_REQUIRED_RESULT inline bool qFuzzyIsNull(qfloat16 f) noexcept
 {
     return qAbs(static_cast<float>(f)) <= 0.001f;
 }
diff --git a/src/corelib/global/qfloat16_f16c.c b/src/corelib/global/qfloat16_f16c.c
index a7eadc71b7..ba1e16f481 100644
--- a/src/corelib/global/qfloat16_f16c.c
+++ b/src/corelib/global/qfloat16_f16c.c
@@ -54,7 +54,7 @@ extern "C" {
 #endif
 
 QT_FUNCTION_TARGET(F16C)
-void qFloatToFloat16_fast(quint16 *out, const float *in, qsizetype len) Q_DECL_NOTHROW
+void qFloatToFloat16_fast(quint16 *out, const float *in, qsizetype len) Q_DECL_NOEXCEPT
 {
     qsizetype i = 0;
     int epilog_i;
@@ -70,7 +70,7 @@ void qFloatToFloat16_fast(quint16 *out, const float *in, qsizetype len) Q_DECL_N
 }
 
 QT_FUNCTION_TARGET(F16C)
-void qFloatFromFloat16_fast(float *out, const quint16 *in, qsizetype len) Q_DECL_NOTHROW
+void qFloatFromFloat16_fast(float *out, const quint16 *in, qsizetype len) Q_DECL_NOEXCEPT
 {
     qsizetype i = 0;
     int epilog_i;
diff --git a/src/corelib/global/qfloat16_p.h b/src/corelib/global/qfloat16_p.h
deleted file mode 100644
index f3fc96e119..0000000000
--- a/src/corelib/global/qfloat16_p.h
+++ /dev/null
@@ -1,95 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 by Southwest Research Institute (R)
-** Contact: http://www.qt-project.org/legal
-**
-** This file is part of the QtCore module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef QFLOAT16_P_H
-#define QFLOAT16_P_H
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API.  It exists purely as an
-// implementation detail.  This header file may change from version to
-// version without notice, or even be removed.
-//
-// We mean it.
-//
-
-#include <QtCore/qfloat16.h>
-#include <QtCore/qsysinfo.h>
-
-QT_BEGIN_NAMESPACE
-
-static inline bool qt_is_inf(qfloat16 d) Q_DECL_NOTHROW
-{
-    bool is_inf;
-    uchar *ch = (uchar *)&d;
-    if (QSysInfo::ByteOrder == QSysInfo::BigEndian)
-        is_inf = (ch[0] & 0x7c) == 0x7c && (ch[0] & 0x02) == 0;
-    else
-        is_inf = (ch[1] & 0x7c) == 0x7c && (ch[1] & 0x02) == 0;
-    return is_inf;
-}
-
-static inline bool qt_is_nan(qfloat16 d) Q_DECL_NOTHROW
-{
-    bool is_nan;
-    uchar *ch = (uchar *)&d;
-    if (QSysInfo::ByteOrder == QSysInfo::BigEndian)
-        is_nan = (ch[0] & 0x7c) == 0x7c && (ch[0] & 0x02) != 0;
-    else
-        is_nan = (ch[1] & 0x7c) == 0x7c && (ch[1] & 0x02) != 0;
-    return is_nan;
-}
-
-static inline bool qt_is_finite(qfloat16 d) Q_DECL_NOTHROW
-{
-    bool is_finite;
-    uchar *ch = (uchar *)&d;
-    if (QSysInfo::ByteOrder == QSysInfo::BigEndian)
-        is_finite = (ch[0] & 0x7c) != 0x7c;
-    else
-        is_finite = (ch[1] & 0x7c) != 0x7c;
-    return is_finite;
-}
-
-
-QT_END_NAMESPACE
-
-#endif // QFLOAT16_P_H
diff --git a/src/corelib/global/qglobal.cpp b/src/corelib/global/qglobal.cpp
index 0fba9b309b..d95064af27 100644
--- a/src/corelib/global/qglobal.cpp
+++ b/src/corelib/global/qglobal.cpp
@@ -525,6 +525,31 @@ Q_STATIC_ASSERT((std::is_same<qsizetype, qptrdiff>::value));
   made private. In that case, no error would be reported, but your
   application would probably crash when you called a member function
   of \c{w}.
+
+  \sa Q_DISABLE_COPY_MOVE, Q_DISABLE_MOVE
+*/
+
+/*!
+  \macro Q_DISABLE_MOVE(Class)
+  \relates QObject
+
+  Disables the use of move constructors and move assignment operators
+  for the given \a Class.
+
+  \sa Q_DISABLE_COPY, Q_DISABLE_COPY_MOVE
+  \since 5.13
+*/
+
+/*!
+  \macro Q_DISABLE_COPY_MOVE(Class)
+  \relates QObject
+
+  A convenience macro that disables the use of copy constructors, assignment
+  operators, move constructors and move assignment operators for the given
+  \a Class, combining Q_DISABLE_COPY and Q_DISABLE_MOVE.
+
+  \sa Q_DISABLE_COPY, Q_DISABLE_MOVE
+  \since 5.13
 */
 
 /*!
@@ -1122,12 +1147,12 @@ Q_STATIC_ASSERT((std::is_same<qsizetype, qptrdiff>::value));
     \sa QT_VERSION_STR, QLibraryInfo::version()
 */
 
-const char *qVersion() Q_DECL_NOTHROW
+const char *qVersion() noexcept
 {
     return QT_VERSION_STR;
 }
 
-bool qSharedBuild() Q_DECL_NOTHROW
+bool qSharedBuild() noexcept
 {
 #ifdef QT_SHARED
     return true;
@@ -1954,11 +1979,11 @@ bool qSharedBuild() Q_DECL_NOTHROW
   a specified version of Qt or any earlier version. The default version number is 5.0,
   meaning that functions deprecated in or before Qt 5.0 will not be included.
 
-  Examples:
-  When using a future release of Qt 5, set QT_DISABLE_DEPRECATED_BEFORE=0x050100 to
-  disable functions deprecated in Qt 5.1 and earlier. In any release, set
-  QT_DISABLE_DEPRECATED_BEFORE=0x000000 to enable any functions, including the ones
-  deprecated in Qt 5.0
+  For instance, when using a future release of Qt 5, set
+  \c{QT_DISABLE_DEPRECATED_BEFORE=0x050100} to disable functions deprecated in
+  Qt 5.1 and earlier. In any release, set
+  \c{QT_DISABLE_DEPRECATED_BEFORE=0x000000} to enable all functions, including
+  the ones deprecated in Qt 5.0.
 
   \sa QT_DEPRECATED_WARNINGS
  */
@@ -1968,12 +1993,24 @@ bool qSharedBuild() Q_DECL_NOTHROW
   \macro QT_DEPRECATED_WARNINGS
   \relates <QtGlobal>
 
-  If this macro is defined, the compiler will generate warnings if API declared as
+  Since Qt 5.13, this macro has no effect. In Qt 5.12 and before, if this macro
+  is defined, the compiler will generate warnings if any API declared as
   deprecated by Qt is used.
 
-  \sa QT_DISABLE_DEPRECATED_BEFORE
+  \sa QT_DISABLE_DEPRECATED_BEFORE, QT_NO_DEPRECATED_WARNINGS
  */
 
+/*!
+  \macro QT_NO_DEPRECATED_WARNINGS
+  \relates <QtGlobal>
+  \since 5.13
+
+  This macro can be used to suppress deprecation warnings that would otherwise
+  be generated when using deprecated APIs.
+
+  \sa QT_DISABLE_DEPRECATED_BEFORE
+*/
+
 #if defined(QT_BUILD_QMAKE)
 // needed to bootstrap qmake
 static const unsigned int qt_one = 1;
@@ -2025,6 +2062,8 @@ static const char *osVer_helper(QOperatingSystemVersion version = QOperatingSyst
             return "Sierra";
         case 13:
             return "High Sierra";
+        case 14:
+            return "Mojave";
         }
     }
     // unknown, future version
@@ -2908,18 +2947,18 @@ enum {
 QByteArray QSysInfo::machineUniqueId()
 {
 #ifdef Q_OS_BSD4
-    char uuid[UuidStringLen];
+    char uuid[UuidStringLen + 1];
     size_t uuidlen = sizeof(uuid);
 #  ifdef KERN_HOSTUUID
     int name[] = { CTL_KERN, KERN_HOSTUUID };
     if (sysctl(name, sizeof name / sizeof name[0], &uuid, &uuidlen, nullptr, 0) == 0
             && uuidlen == sizeof(uuid))
-        return QByteArray(uuid, uuidlen);
+        return QByteArray(uuid, uuidlen - 1);
 
 #  else
     // Darwin: no fixed value, we need to search by name
     if (sysctlbyname("kern.uuid", uuid, &uuidlen, nullptr, 0) == 0 && uuidlen == sizeof(uuid))
-        return QByteArray(uuid, uuidlen);
+        return QByteArray(uuid, uuidlen - 1);
 #  endif
 #elif defined(Q_OS_UNIX)
     // The modern name on Linux is /etc/machine-id, but that path is
@@ -2942,7 +2981,7 @@ QByteArray QSysInfo::machineUniqueId()
 #elif defined(Q_OS_WIN) && !defined(Q_OS_WINRT)
     // Let's poke at the registry
     HKEY key = NULL;
-    if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, L"SOFTWARE\\Microsoft\\Cryptography", 0, KEY_READ, &key)
+    if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, L"SOFTWARE\\Microsoft\\Cryptography", 0, KEY_READ | KEY_WOW64_64KEY, &key)
             == ERROR_SUCCESS) {
         wchar_t buffer[UuidStringLen + 1];
         DWORD size = sizeof(buffer);
@@ -2983,11 +3022,11 @@ QByteArray QSysInfo::bootUniqueId()
     }
 #elif defined(Q_OS_DARWIN)
     // "kern.bootsessionuuid" is only available by name
-    char uuid[UuidStringLen];
+    char uuid[UuidStringLen + 1];
     size_t uuidlen = sizeof(uuid);
     if (sysctlbyname("kern.bootsessionuuid", uuid, &uuidlen, nullptr, 0) == 0
             && uuidlen == sizeof(uuid))
-        return QByteArray(uuid, uuidlen);
+        return QByteArray(uuid, uuidlen - 1);
 #endif
     return QByteArray();
 };
@@ -3167,7 +3206,7 @@ QByteArray QSysInfo::bootUniqueId()
     The Q_CHECK_PTR macro calls this function if an allocation check
     fails.
 */
-void qt_check_pointer(const char *n, int l) Q_DECL_NOTHROW
+void qt_check_pointer(const char *n, int l) noexcept
 {
     // make separate printing calls so that the first one may flush;
     // the second one could want to allocate memory (fputs prints a
@@ -3194,7 +3233,7 @@ void qBadAlloc()
    Allows you to call std::terminate() without including <exception>.
    Called internally from QT_TERMINATE_ON_EXCEPTION
 */
-Q_NORETURN void qTerminate() Q_DECL_NOTHROW
+Q_NORETURN void qTerminate() noexcept
 {
     std::terminate();
 }
@@ -3203,7 +3242,7 @@ Q_NORETURN void qTerminate() Q_DECL_NOTHROW
 /*
   The Q_ASSERT macro calls this function when the test fails.
 */
-void qt_assert(const char *assertion, const char *file, int line) Q_DECL_NOTHROW
+void qt_assert(const char *assertion, const char *file, int line) noexcept
 {
     QMessageLogger(file, line, nullptr).fatal("ASSERT: \"%s\" in file %s, line %d", assertion, file, line);
 }
@@ -3211,7 +3250,7 @@ void qt_assert(const char *assertion, const char *file, int line) Q_DECL_NOTHROW
 /*
   The Q_ASSERT_X macro calls this function when the test fails.
 */
-void qt_assert_x(const char *where, const char *what, const char *file, int line) Q_DECL_NOTHROW
+void qt_assert_x(const char *where, const char *what, const char *file, int line) noexcept
 {
     QMessageLogger(file, line, nullptr).fatal("ASSERT failure in %s: \"%s\", file %s, line %d", where, what, file, line);
 }
@@ -3413,14 +3452,12 @@ QString qEnvironmentVariable(const char *varName)
     Returns whether the environment variable \a varName is empty.
 
     Equivalent to
-    \code
-    qgetenv(varName).isEmpty()
-    \endcode
+    \snippet code/src_corelib_global_qglobal.cpp is-empty
     except that it's potentially much faster, and can't throw exceptions.
 
     \sa qgetenv(), qEnvironmentVariable(), qEnvironmentVariableIsSet()
 */
-bool qEnvironmentVariableIsEmpty(const char *varName) Q_DECL_NOEXCEPT
+bool qEnvironmentVariableIsEmpty(const char *varName) noexcept
 {
     QMutexLocker locker(&environmentMutex);
 #ifdef Q_CC_MSVC
@@ -3445,9 +3482,7 @@ bool qEnvironmentVariableIsEmpty(const char *varName) Q_DECL_NOEXCEPT
     on the success of the conversion.
 
     Equivalent to
-    \code
-    qgetenv(varName).toInt(ok, 0)
-    \endcode
+    \snippet code/src_corelib_global_qglobal.cpp to-int
     except that it's much faster, and can't throw exceptions.
 
     \note there's a limit on the length of the value, which is sufficient for
@@ -3457,7 +3492,7 @@ bool qEnvironmentVariableIsEmpty(const char *varName) Q_DECL_NOEXCEPT
 
     \sa qgetenv(), qEnvironmentVariable(), qEnvironmentVariableIsSet()
 */
-int qEnvironmentVariableIntValue(const char *varName, bool *ok) Q_DECL_NOEXCEPT
+int qEnvironmentVariableIntValue(const char *varName, bool *ok) noexcept
 {
     static const int NumBinaryDigitsPerOctalDigit = 3;
     static const int MaxDigitsForOctalInt =
@@ -3521,14 +3556,12 @@ int qEnvironmentVariableIntValue(const char *varName, bool *ok) Q_DECL_NOEXCEPT
     Returns whether the environment variable \a varName is set.
 
     Equivalent to
-    \code
-    !qgetenv(varName).isNull()
-    \endcode
+    \snippet code/src_corelib_global_qglobal.cpp is-null
     except that it's potentially much faster, and can't throw exceptions.
 
     \sa qgetenv(), qEnvironmentVariable(), qEnvironmentVariableIsEmpty()
 */
-bool qEnvironmentVariableIsSet(const char *varName) Q_DECL_NOEXCEPT
+bool qEnvironmentVariableIsSet(const char *varName) noexcept
 {
     QMutexLocker locker(&environmentMutex);
 #ifdef Q_CC_MSVC
@@ -3699,37 +3732,21 @@ bool qunsetenv(const char *varName)
 
     Its main use in Qt is to prevent implicitly-shared Qt containers
     from detaching:
-    \code
-    QString s = ...;
-    for (QChar ch : s) // detaches 's' (performs a deep-copy if 's' was shared)
-        process(ch);
-    for (QChar ch : qAsConst(s)) // ok, no detach attempt
-        process(ch);
-    \endcode
+    \snippet code/src_corelib_global_qglobal.cpp as-const-0
 
     Of course, in this case, you could (and probably should) have declared
     \c s as \c const in the first place:
-    \code
-    const QString s = ...;
-    for (QChar ch : s) // ok, no detach attempt on const objects
-        process(ch);
-    \endcode
+    \snippet code/src_corelib_global_qglobal.cpp as-const-1
     but often that is not easily possible.
 
     It is important to note that qAsConst() does not copy its argument,
     it just performs a \c{const_cast<const T&>(t)}. This is also the reason
     why it is designed to fail for rvalues: The returned reference would go
     stale too soon. So while this works (but detaches the returned object):
-    \code
-    for (QChar ch : funcReturningQString())
-        process(ch); // OK, the returned object is kept alive for the loop's duration
-    \endcode
+    \snippet code/src_corelib_global_qglobal.cpp as-const-2
 
     this would not:
-    \code
-    for (QChar ch : qAsConst(funcReturningQString()))
-        process(ch); // ERROR: ch is copied from deleted memory
-    \endcode
+    \snippet code/src_corelib_global_qglobal.cpp as-const-3
 
     To prevent this construct from compiling (and failing at runtime), qAsConst() has
     a second, deleted, overload which binds to rvalues.
@@ -3742,10 +3759,7 @@ bool qunsetenv(const char *varName)
     \overload
 
     This overload is deleted to prevent a dangling reference in code like
-    \code
-    for (QChar ch : qAsConst(funcReturningQString()))
-        process(ch); // ERROR: ch is copied from deleted memory
-    \endcode
+    \snippet code/src_corelib_global_qglobal.cpp as-const-4
 */
 
 /*!
@@ -3858,7 +3872,7 @@ bool qunsetenv(const char *varName)
     dependent delayed translation in the given \a context with the given
     \a comment.
     The \a context is typically a class and also needs to be specified
-    as a string literal. The string literal \a disambiguation should be
+    as a string literal. The string literal \a comment should be
     a short semantic tag to tell apart otherwise identical strings.
 
     The macro tells lupdate to collect the string, and expands to an
@@ -4103,6 +4117,13 @@ bool qunsetenv(const char *varName)
     Example of a movable type:
 
     \snippet code/src_corelib_global_qglobal.cpp 39
+
+    Qt will try to detect the class of a type using std::is_trivial or
+    std::is_trivially_copyable. Use this macro to tune the behavior.
+    For instance many types would be candidates for Q_MOVABLE_TYPE despite
+    not being trivially-copyable. For binary compatibility reasons, QList
+    optimizations are only enabled if there is an explicit
+    Q_DECLARE_TYPEINFO even for trivially-copyable types.
 */
 
 /*!
@@ -4679,9 +4700,7 @@ bool QInternal::activateCallbacks(Callback cb, void **parameters)
     purpose. It either expands to \c expr (if Qt is compiled without
     exception support or the compiler supports C++11 noexcept
     semantics) or to
-    \code
-    try { expr; } catch(...) { qTerminate(); }
-    \endcode
+    \snippet code/src_corelib_global_qglobal.cpp qterminate
     otherwise.
 
     Since this macro expands to just \c expr if the compiler supports
@@ -4751,10 +4770,7 @@ bool QInternal::activateCallbacks(Callback cb, void **parameters)
 
     The macro goes at the end of the function, usually after the
     \c{const}, if any:
-    \code
-    // generate error if this doesn't actually override anything:
-    virtual void MyWidget::paintEvent(QPaintEvent*) Q_DECL_OVERRIDE;
-    \endcode
+    \snippet code/src_corelib_global_qglobal.cpp qdecloverride
 
     \sa Q_DECL_FINAL
 */
@@ -4776,18 +4792,11 @@ bool QInternal::activateCallbacks(Callback cb, void **parameters)
 
     The macro goes at the end of the function, usually after the
     \c{const}, if any:
-    \code
-    // more-derived classes no longer permitted to override this:
-    virtual void MyWidget::paintEvent(QPaintEvent*) Q_DECL_FINAL;
-    \endcode
+    \snippet code/src_corelib_global_qglobal.cpp qdeclfinal-1
 
     For classes, it goes in front of the \c{:} in the class
     definition, if any:
-    \code
-    class QRect Q_DECL_FINAL { // cannot be derived from
-        // ...
-    };
-    \endcode
+    \snippet code/src_corelib_global_qglobal.cpp qdeclfinal-2
 
     \sa Q_DECL_OVERRIDE
 */
diff --git a/src/corelib/global/qglobal.h b/src/corelib/global/qglobal.h
index f56629faa1..a0207b483d 100644
--- a/src/corelib/global/qglobal.h
+++ b/src/corelib/global/qglobal.h
@@ -287,7 +287,7 @@ typedef double qreal;
 #  undef QT_DEPRECATED_X
 #  undef QT_DEPRECATED_VARIABLE
 #  undef QT_DEPRECATED_CONSTRUCTOR
-#elif defined(QT_DEPRECATED_WARNINGS)
+#elif !defined(QT_NO_DEPRECATED_WARNINGS)
 #  undef QT_DEPRECATED
 #  define QT_DEPRECATED Q_DECL_DEPRECATED
 #  undef QT_DEPRECATED_X
@@ -372,6 +372,14 @@ typedef double qreal;
     Class(const Class &) Q_DECL_EQ_DELETE;\
     Class &operator=(const Class &) Q_DECL_EQ_DELETE;
 
+#define Q_DISABLE_MOVE(Class) \
+    Class(Class &&) = delete; \
+    Class &operator=(Class &&) = delete;
+
+#define Q_DISABLE_COPY_MOVE(Class) \
+    Q_DISABLE_COPY(Class) \
+    Q_DISABLE_MOVE(Class)
+
 /*
    No, this is not an evil backdoor. QT_BUILD_INTERNAL just exports more symbols
    for Qt's internal unit tests. If you want slower loading times and more
@@ -403,7 +411,7 @@ typedef double qreal;
 #if !defined(QT_NAMESPACE) && defined(__cplusplus) && !defined(Q_QDOC)
 extern "C"
 #endif
-Q_CORE_EXPORT Q_DECL_CONST_FUNCTION const char *qVersion(void) Q_DECL_NOTHROW;
+Q_CORE_EXPORT Q_DECL_CONST_FUNCTION const char *qVersion(void) Q_DECL_NOEXCEPT;
 
 #if defined(__cplusplus)
 
@@ -722,7 +730,7 @@ inline void qt_noop(void) {}
 #  define QT_CATCH(A) catch (A)
 #  define QT_THROW(A) throw A
 #  define QT_RETHROW throw
-Q_NORETURN Q_DECL_COLD_FUNCTION Q_CORE_EXPORT void qTerminate() Q_DECL_NOTHROW;
+Q_NORETURN Q_DECL_COLD_FUNCTION Q_CORE_EXPORT void qTerminate() noexcept;
 #  ifdef Q_COMPILER_NOEXCEPT
 #    define QT_TERMINATE_ON_EXCEPTION(expr) do { expr; } while (false)
 #  else
@@ -730,7 +738,7 @@ Q_NORETURN Q_DECL_COLD_FUNCTION Q_CORE_EXPORT void qTerminate() Q_DECL_NOTHROW;
 #  endif
 #endif
 
-Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qSharedBuild() Q_DECL_NOTHROW;
+Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qSharedBuild() noexcept;
 
 #ifndef Q_OUTOFLINE_TEMPLATE
 #  define Q_OUTOFLINE_TEMPLATE
@@ -773,7 +781,7 @@ Q_CORE_EXPORT QString qt_error_string(int errorCode = -1);
 Q_NORETURN
 #endif
 Q_DECL_COLD_FUNCTION
-Q_CORE_EXPORT void qt_assert(const char *assertion, const char *file, int line) Q_DECL_NOTHROW;
+Q_CORE_EXPORT void qt_assert(const char *assertion, const char *file, int line) noexcept;
 
 #if !defined(Q_ASSERT)
 #  if defined(QT_NO_DEBUG) && !defined(QT_FORCE_ASSERTS)
@@ -791,7 +799,7 @@ Q_CORE_EXPORT void qt_assert(const char *assertion, const char *file, int line)
 Q_NORETURN
 #endif
 Q_DECL_COLD_FUNCTION
-Q_CORE_EXPORT void qt_assert_x(const char *where, const char *what, const char *file, int line) Q_DECL_NOTHROW;
+Q_CORE_EXPORT void qt_assert_x(const char *where, const char *what, const char *file, int line) noexcept;
 
 #if !defined(Q_ASSERT_X)
 #  if defined(QT_NO_DEBUG) && !defined(QT_FORCE_ASSERTS)
@@ -801,7 +809,7 @@ Q_CORE_EXPORT void qt_assert_x(const char *where, const char *what, const char *
 #  endif
 #endif
 
-Q_NORETURN Q_CORE_EXPORT void qt_check_pointer(const char *, int) Q_DECL_NOTHROW;
+Q_NORETURN Q_CORE_EXPORT void qt_check_pointer(const char *, int) noexcept;
 Q_DECL_COLD_FUNCTION
 Q_CORE_EXPORT void qBadAlloc();
 
@@ -902,14 +910,14 @@ namespace SwapExceptionTester { // insulate users from the "using std::swap" bel
     using std::swap; // import std::swap
     template <typename T>
     void checkSwap(T &t)
-        Q_DECL_NOEXCEPT_EXPR(noexcept(swap(t, t)));
+        noexcept(noexcept(swap(t, t)));
     // declared, but not implemented (only to be used in unevaluated contexts (noexcept operator))
 }
 } // namespace QtPrivate
 
 template <typename T>
 inline void qSwap(T &value1, T &value2)
-    Q_DECL_NOEXCEPT_EXPR(noexcept(QtPrivate::SwapExceptionTester::checkSwap(value1)))
+    noexcept(noexcept(QtPrivate::SwapExceptionTester::checkSwap(value1)))
 {
     using std::swap;
     swap(value1, value2);
@@ -960,7 +968,7 @@ QT_WARNING_DISABLE_MSVC(4530) /* C++ exception handler used, but unwind semantic
 
 // this adds const to non-const objects (like std::as_const)
 template <typename T>
-Q_DECL_CONSTEXPR typename std::add_const<T>::type &qAsConst(T &t) Q_DECL_NOTHROW { return t; }
+Q_DECL_CONSTEXPR typename std::add_const<T>::type &qAsConst(T &t) noexcept { return t; }
 // prevent rvalue arguments:
 template <typename T>
 void qAsConst(const T &&) Q_DECL_EQ_DELETE;
@@ -1005,6 +1013,15 @@ QForeachContainer<typename std::decay<T>::type> qMakeForeachContainer(T &&t)
 }
 
 }
+
+#if __cplusplus >= 201703L
+// Use C++17 if statement with initializer. User's code ends up in a else so
+// scoping of different ifs is not broken
+#define Q_FOREACH(variable, container)                                   \
+for (auto _container_ = QtPrivate::qMakeForeachContainer(container);     \
+     _container_.i != _container_.e;  ++_container_.i)                   \
+    if (variable = *_container_.i; false) {} else
+#else
 // Explanation of the control word:
 //  - it's initialized to 1
 //  - that means both the inner and outer loops start
@@ -1019,7 +1036,7 @@ for (auto _container_ = QtPrivate::qMakeForeachContainer(container); \
      _container_.control && _container_.i != _container_.e;         \
      ++_container_.i, _container_.control ^= 1)                     \
     for (variable = *_container_.i; _container_.control; _container_.control = 0)
-
+#endif
 #endif // QT_NO_FOREACH
 
 #define Q_FOREVER for(;;)
@@ -1037,14 +1054,20 @@ for (auto _container_ = QtPrivate::qMakeForeachContainer(container); \
 template <typename T> inline T *qGetPtrHelper(T *ptr) { return ptr; }
 template <typename Ptr> inline auto qGetPtrHelper(const Ptr &ptr) -> decltype(ptr.operator->()) { return ptr.operator->(); }
 
+// The body must be a statement:
+#define Q_CAST_IGNORE_ALIGN(body) QT_WARNING_PUSH QT_WARNING_DISABLE_GCC("-Wcast-align") body QT_WARNING_POP
 #define Q_DECLARE_PRIVATE(Class) \
-    inline Class##Private* d_func() { return reinterpret_cast<Class##Private *>(qGetPtrHelper(d_ptr)); } \
-    inline const Class##Private* d_func() const { return reinterpret_cast<const Class##Private *>(qGetPtrHelper(d_ptr)); } \
+    inline Class##Private* d_func() \
+    { Q_CAST_IGNORE_ALIGN(return reinterpret_cast<Class##Private *>(qGetPtrHelper(d_ptr));) } \
+    inline const Class##Private* d_func() const \
+    { Q_CAST_IGNORE_ALIGN(return reinterpret_cast<const Class##Private *>(qGetPtrHelper(d_ptr));) } \
     friend class Class##Private;
 
 #define Q_DECLARE_PRIVATE_D(Dptr, Class) \
-    inline Class##Private* d_func() { return reinterpret_cast<Class##Private *>(qGetPtrHelper(Dptr)); } \
-    inline const Class##Private* d_func() const { return reinterpret_cast<const Class##Private *>(qGetPtrHelper(Dptr)); } \
+    inline Class##Private* d_func() \
+    { Q_CAST_IGNORE_ALIGN(return reinterpret_cast<Class##Private *>(qGetPtrHelper(Dptr));) } \
+    inline const Class##Private* d_func() const \
+    { Q_CAST_IGNORE_ALIGN(return reinterpret_cast<const Class##Private *>(qGetPtrHelper(Dptr));) } \
     friend class Class##Private;
 
 #define Q_DECLARE_PUBLIC(Class)                                    \
@@ -1107,11 +1130,11 @@ template <typename... Args>
 struct QNonConstOverload
 {
     template <typename R, typename T>
-    Q_DECL_CONSTEXPR auto operator()(R (T::*ptr)(Args...)) const Q_DECL_NOTHROW -> decltype(ptr)
+    Q_DECL_CONSTEXPR auto operator()(R (T::*ptr)(Args...)) const noexcept -> decltype(ptr)
     { return ptr; }
 
     template <typename R, typename T>
-    static Q_DECL_CONSTEXPR auto of(R (T::*ptr)(Args...)) Q_DECL_NOTHROW -> decltype(ptr)
+    static Q_DECL_CONSTEXPR auto of(R (T::*ptr)(Args...)) noexcept -> decltype(ptr)
     { return ptr; }
 };
 
@@ -1119,11 +1142,11 @@ template <typename... Args>
 struct QConstOverload
 {
     template <typename R, typename T>
-    Q_DECL_CONSTEXPR auto operator()(R (T::*ptr)(Args...) const) const Q_DECL_NOTHROW -> decltype(ptr)
+    Q_DECL_CONSTEXPR auto operator()(R (T::*ptr)(Args...) const) const noexcept -> decltype(ptr)
     { return ptr; }
 
     template <typename R, typename T>
-    static Q_DECL_CONSTEXPR auto of(R (T::*ptr)(Args...) const) Q_DECL_NOTHROW -> decltype(ptr)
+    static Q_DECL_CONSTEXPR auto of(R (T::*ptr)(Args...) const) noexcept -> decltype(ptr)
     { return ptr; }
 };
 
@@ -1136,11 +1159,11 @@ struct QOverload : QConstOverload<Args...>, QNonConstOverload<Args...>
     using QNonConstOverload<Args...>::operator();
 
     template <typename R>
-    Q_DECL_CONSTEXPR auto operator()(R (*ptr)(Args...)) const Q_DECL_NOTHROW -> decltype(ptr)
+    Q_DECL_CONSTEXPR auto operator()(R (*ptr)(Args...)) const noexcept -> decltype(ptr)
     { return ptr; }
 
     template <typename R>
-    static Q_DECL_CONSTEXPR auto of(R (*ptr)(Args...)) Q_DECL_NOTHROW -> decltype(ptr)
+    static Q_DECL_CONSTEXPR auto of(R (*ptr)(Args...)) noexcept -> decltype(ptr)
     { return ptr; }
 };
 
@@ -1161,9 +1184,9 @@ Q_CORE_EXPORT QString qEnvironmentVariable(const char *varName, const QString &d
 Q_CORE_EXPORT bool qputenv(const char *varName, const QByteArray& value);
 Q_CORE_EXPORT bool qunsetenv(const char *varName);
 
-Q_CORE_EXPORT bool qEnvironmentVariableIsEmpty(const char *varName) Q_DECL_NOEXCEPT;
-Q_CORE_EXPORT bool qEnvironmentVariableIsSet(const char *varName) Q_DECL_NOEXCEPT;
-Q_CORE_EXPORT int  qEnvironmentVariableIntValue(const char *varName, bool *ok=nullptr) Q_DECL_NOEXCEPT;
+Q_CORE_EXPORT bool qEnvironmentVariableIsEmpty(const char *varName) noexcept;
+Q_CORE_EXPORT bool qEnvironmentVariableIsSet(const char *varName) noexcept;
+Q_CORE_EXPORT int  qEnvironmentVariableIntValue(const char *varName, bool *ok=nullptr) noexcept;
 
 inline int qIntCast(double f) { return int(f); }
 inline int qIntCast(float f) { return int(f); }
diff --git a/src/corelib/global/qglobalstatic.h b/src/corelib/global/qglobalstatic.h
index 555bdf04c1..4f89876793 100644
--- a/src/corelib/global/qglobalstatic.h
+++ b/src/corelib/global/qglobalstatic.h
@@ -79,14 +79,14 @@ enum GuardValues {
     Q_GLOBAL_STATIC_INTERNAL_DECORATION Type *innerFunction()   \
     {                                                           \
         struct HolderBase {                                     \
-            ~HolderBase() Q_DECL_NOTHROW                        \
+            ~HolderBase() noexcept                        \
             { if (guard.load() == QtGlobalStatic::Initialized)  \
                   guard.store(QtGlobalStatic::Destroyed); }     \
         };                                                      \
         static struct Holder : public HolderBase {              \
             Type value;                                         \
             Holder()                                            \
-                Q_DECL_NOEXCEPT_EXPR(noexcept(Type ARGS))       \
+                noexcept(noexcept(Type ARGS))       \
                 : value ARGS                                    \
             { guard.store(QtGlobalStatic::Initialized); }       \
         } holder;                                               \
@@ -131,8 +131,8 @@ struct QGlobalStatic
 
     bool isDestroyed() const { return guard.load() <= QtGlobalStatic::Destroyed; }
     bool exists() const { return guard.load() == QtGlobalStatic::Initialized; }
-    operator Type *() { if (isDestroyed()) return 0; return innerFunction(); }
-    Type *operator()() { if (isDestroyed()) return 0; return innerFunction(); }
+    operator Type *() { if (isDestroyed()) return nullptr; return innerFunction(); }
+    Type *operator()() { if (isDestroyed()) return nullptr; return innerFunction(); }
     Type *operator->()
     {
       Q_ASSERT_X(!isDestroyed(), "Q_GLOBAL_STATIC", "The global static was used after being destroyed");
diff --git a/src/corelib/global/qglobalstatic.qdoc b/src/corelib/global/qglobalstatic.qdoc
index dbea04ecab..e7935d5a9b 100644
--- a/src/corelib/global/qglobalstatic.qdoc
+++ b/src/corelib/global/qglobalstatic.qdoc
@@ -435,6 +435,7 @@
 */
 
 /*!
+    \keyword qglobalstatic-operator-type-ptr
     \fn template <typename T, T *(&innerFunction)(), QBasicAtomicInt &guard> QGlobalStatic<T, innerFunction, guard>::operator Type*()
 
     This function returns the address of the contents of this global static. If
@@ -476,10 +477,11 @@
     by this function. If the contents have already been destroyed, this
     function will return a null pointer.
 
-    This function is equivalent to \l {operator Type *()}. It is provided for
-    compatibility with the private Q_GLOBAL_STATIC implementation that existed
-    in Qt 4.x and 5.0. New code should avoid using it and should instead treat
-    the object as a smart pointer.
+    This function is equivalent to \l {qglobalstatic-operator-type-ptr}
+    {operator Type *()}. It is provided for compatibility with the private
+    Q_GLOBAL_STATIC implementation that existed in Qt 4.x and 5.0. New code
+    should avoid using it and should instead treat the object as a smart
+    pointer.
 */
 
 /*!
diff --git a/src/corelib/global/qhooks.cpp b/src/corelib/global/qhooks.cpp
index bbddb1cbf1..020dee3710 100644
--- a/src/corelib/global/qhooks.cpp
+++ b/src/corelib/global/qhooks.cpp
@@ -67,7 +67,7 @@ quintptr Q_CORE_EXPORT qtHookData[] = {
     // The required sizes and offsets are tested in tests/auto/other/toolsupport.
     // When this fails and the change was intentional, adjust the test and
     // adjust this value here.
-    16
+    17
 };
 
 Q_STATIC_ASSERT(QHooks::LastHookIndex == sizeof(qtHookData) / sizeof(qtHookData[0]));
diff --git a/src/corelib/global/qlibraryinfo.cpp b/src/corelib/global/qlibraryinfo.cpp
index e727f00c8e..c3eb469767 100644
--- a/src/corelib/global/qlibraryinfo.cpp
+++ b/src/corelib/global/qlibraryinfo.cpp
@@ -41,7 +41,9 @@
 #include "qdir.h"
 #include "qstringlist.h"
 #include "qfile.h"
+#if QT_CONFIG(settings)
 #include "qsettings.h"
+#endif
 #include "qlibraryinfo.h"
 #include "qscopedpointer.h"
 
@@ -67,7 +69,7 @@ QT_BEGIN_NAMESPACE
 
 extern void qDumpCPUFeatures(); // in qsimd.cpp
 
-#ifndef QT_NO_SETTINGS
+#if QT_CONFIG(settings)
 
 struct QLibrarySettings
 {
@@ -204,7 +206,7 @@ QSettings *QLibraryInfoPrivate::findConfiguration()
     return 0;     //no luck
 }
 
-#endif // QT_NO_SETTINGS
+#endif // settings
 
 /*!
     \class QLibraryInfo
@@ -348,7 +350,7 @@ QLibraryInfo::buildDate()
   \since 5.3
 */
 
-const char *QLibraryInfo::build() Q_DECL_NOTHROW
+const char *QLibraryInfo::build() noexcept
 {
     return QT_BUILD_STR;
 }
@@ -375,7 +377,7 @@ QLibraryInfo::isDebugBuild()
 
     \sa qVersion()
 */
-QVersionNumber QLibraryInfo::version() Q_DECL_NOTHROW
+QVersionNumber QLibraryInfo::version() noexcept
 {
     return QVersionNumber(QT_VERSION_MAJOR, QT_VERSION_MINOR, QT_VERSION_PATCH);
 }
@@ -464,7 +466,7 @@ QLibraryInfo::rawLocation(LibraryLocation loc, PathGroup group)
 #endif // QT_BUILD_QMAKE, started inside location !
     QString ret;
     bool fromConf = false;
-#ifndef QT_NO_SETTINGS
+#if QT_CONFIG(settings)
 #ifdef QT_BUILD_QMAKE
     // Logic for choosing the right data source: if EffectivePaths are requested
     // and qt.conf with that section is present, use it, otherwise fall back to
@@ -547,7 +549,7 @@ QLibraryInfo::rawLocation(LibraryLocation loc, PathGroup group)
             ret = QDir::fromNativeSeparators(ret);
         }
     }
-#endif // QT_NO_SETTINGS
+#endif // settings
 
 #ifndef QT_BUILD_QMAKE_BOOTSTRAP
     if (!fromConf) {
@@ -646,7 +648,7 @@ QLibraryInfo::rawLocation(LibraryLocation loc, PathGroup group)
 
 QStringList QLibraryInfo::platformPluginArguments(const QString &platformName)
 {
-#if !defined(QT_BUILD_QMAKE) && !defined(QT_NO_SETTINGS)
+#if !defined(QT_BUILD_QMAKE) && QT_CONFIG(settings)
     QScopedPointer<const QSettings> settings(QLibraryInfoPrivate::findConfiguration());
     if (!settings.isNull()) {
         const QString key = QLatin1String(platformsSection)
@@ -657,7 +659,7 @@ QStringList QLibraryInfo::platformPluginArguments(const QString &platformName)
     }
 #else
     Q_UNUSED(platformName);
-#endif // !QT_BUILD_QMAKE && !QT_NO_SETTINGS
+#endif // !QT_BUILD_QMAKE && settings
     return QStringList();
 }
 
@@ -715,11 +717,6 @@ void qt_core_boilerplate()
 
     QT_PREPEND_NAMESPACE(qDumpCPUFeatures)();
 
-#ifdef QT_EVAL
-    extern void qt_core_eval_init(QCoreApplicationPrivate::Type);
-    qt_core_eval_init(QCoreApplicationPrivate::Tty);
-#endif
-
     exit(0);
 }
 
diff --git a/src/corelib/global/qlibraryinfo.h b/src/corelib/global/qlibraryinfo.h
index 80fc5bd4fc..20fd3897f7 100644
--- a/src/corelib/global/qlibraryinfo.h
+++ b/src/corelib/global/qlibraryinfo.h
@@ -62,12 +62,12 @@ public:
 #endif // QT_DEPRECATED_SINCE(5, 5)
 #endif // datestring
 
-    static const char * build() Q_DECL_NOTHROW;
+    static const char * build() noexcept;
 
     static bool isDebugBuild();
 
 #ifndef QT_BOOTSTRAPPED
-    static QVersionNumber version() Q_DECL_NOTHROW Q_DECL_CONST_FUNCTION;
+    static QVersionNumber version() noexcept Q_DECL_CONST_FUNCTION;
 #endif
 
     enum LibraryLocation
diff --git a/src/corelib/global/qlogging.cpp b/src/corelib/global/qlogging.cpp
index a9c5d17aad..4941ca45aa 100644
--- a/src/corelib/global/qlogging.cpp
+++ b/src/corelib/global/qlogging.cpp
@@ -57,6 +57,7 @@
 #include "private/qloggingregistry_p.h"
 #include "private/qcoreapplication_p.h"
 #include "private/qsimd_p.h"
+#include <qtcore_tracepoints_p.h>
 #endif
 #ifdef Q_OS_WIN
 #include <qt_windows.h>
@@ -239,7 +240,7 @@ static bool systemHasStderr()
 
     \note Qt Creator does not implement a pseudo TTY, nor does it launch apps with
     the override environment variable set, but it will read stderr and print it to
-    the user, so in effect this function can not be used to conclude that stderr
+    the user, so in effect this function cannot be used to conclude that stderr
     output will _not_ be visible to the user, as even if this function returns false,
     the output might still end up visible to the user. For this reason, we don't guard
     the stderr output in the default message handler with stderrHasConsoleAttached().
@@ -346,7 +347,7 @@ using namespace QtPrivate;
 */
 
 #if defined(Q_CC_MSVC) && defined(QT_DEBUG) && defined(_DEBUG) && defined(_CRT_ERROR)
-static inline void convert_to_wchar_t_elided(wchar_t *d, size_t space, const char *s) Q_DECL_NOEXCEPT
+static inline void convert_to_wchar_t_elided(wchar_t *d, size_t space, const char *s) noexcept
 {
     size_t len = qstrlen(s);
     if (len + 1 > space) {
@@ -529,7 +530,7 @@ QDebug QMessageLogger::debug(QMessageLogger::CategoryFunction catFunc) const
 
     \sa QNoDebug, qDebug()
 */
-QNoDebug QMessageLogger::noDebug() const Q_DECL_NOTHROW
+QNoDebug QMessageLogger::noDebug() const noexcept
 {
     return QNoDebug();
 }
@@ -875,7 +876,7 @@ QDebug QMessageLogger::critical(QMessageLogger::CategoryFunction catFunc) const
 
     \sa qFatal()
 */
-void QMessageLogger::fatal(const char *msg, ...) const Q_DECL_NOTHROW
+void QMessageLogger::fatal(const char *msg, ...) const noexcept
 {
     QString message;
 
@@ -1811,6 +1812,8 @@ static void ungrabMessageHandler() { }
 static void qt_message_print(QtMsgType msgType, const QMessageLogContext &context, const QString &message)
 {
 #ifndef QT_BOOTSTRAPPED
+    Q_TRACE(qt_message_print, msgType, context.category, context.function, context.file, context.line, message);
+
     // qDebug, qWarning, ... macros do not check whether category is enabled
     if (isDefaultCategory(context.category)) {
         if (QLoggingCategory *defaultCategory = QLoggingCategory::defaultCategory()) {
@@ -1885,7 +1888,7 @@ static void qt_message_fatal(QtMsgType, const QMessageLogContext &context, const
     // [support.start.term]). So we bypass std::abort() and directly
     // terminate the application.
 
-#  ifdef Q_CC_MSVC
+#  if defined(Q_CC_MSVC) && !defined(Q_CC_INTEL)
     if (IsProcessorFeaturePresent(PF_FASTFAIL_AVAILABLE))
         __fastfail(FAST_FAIL_FATAL_APP_EXIT);
 #  else
@@ -2062,9 +2065,7 @@ void qErrnoWarning(int code, const char *msg, ...)
     is not the default one.
 
     Example:
-    \code
-    QT_MESSAGE_PATTERN="[%{time yyyyMMdd h:mm:ss.zzz t} %{if-debug}D%{endif}%{if-info}I%{endif}%{if-warning}W%{endif}%{if-critical}C%{endif}%{if-fatal}F%{endif}] %{file}:%{line} - %{message}"
-    \endcode
+    \snippet code/src_corelib_global_qlogging.cpp 0
 
     The default \a pattern is "%{if-category}%{category}: %{endif}%{message}".
 
diff --git a/src/corelib/global/qlogging.h b/src/corelib/global/qlogging.h
index 16e01183bd..8f39780112 100644
--- a/src/corelib/global/qlogging.h
+++ b/src/corelib/global/qlogging.h
@@ -121,7 +121,7 @@ public:
     Q_NORETURN
 #endif
     Q_DECL_COLD_FUNCTION
-    void fatal(const char *msg, ...) const Q_DECL_NOTHROW Q_ATTRIBUTE_FORMAT_PRINTF(2, 3);
+    void fatal(const char *msg, ...) const noexcept Q_ATTRIBUTE_FORMAT_PRINTF(2, 3);
 
 #ifndef QT_NO_DEBUG_STREAM
     QDebug debug() const;
@@ -137,7 +137,7 @@ public:
     QDebug critical(const QLoggingCategory &cat) const;
     QDebug critical(CategoryFunction catFunc) const;
 
-    QNoDebug noDebug() const Q_DECL_NOTHROW;
+    QNoDebug noDebug() const noexcept;
 #endif // QT_NO_DEBUG_STREAM
 
 private:
@@ -153,9 +153,9 @@ private:
 #endif
 
 #ifdef QT_MESSAGELOGCONTEXT
-  #define QT_MESSAGELOG_FILE __FILE__
+  #define QT_MESSAGELOG_FILE static_cast<const char *>(__FILE__)
   #define QT_MESSAGELOG_LINE __LINE__
-  #define QT_MESSAGELOG_FUNC Q_FUNC_INFO
+  #define QT_MESSAGELOG_FUNC static_cast<const char *>(Q_FUNC_INFO)
 #else
   #define QT_MESSAGELOG_FILE nullptr
   #define QT_MESSAGELOG_LINE 0
diff --git a/src/corelib/global/qnamespace.h b/src/corelib/global/qnamespace.h
index ce6771d700..90dd36113f 100644
--- a/src/corelib/global/qnamespace.h
+++ b/src/corelib/global/qnamespace.h
@@ -50,10 +50,10 @@ QT_BEGIN_NAMESPACE
 
 #if !defined(Q_QDOC) && !defined(Q_MOC_RUN)
 struct QMetaObject;
-const QMetaObject *qt_getQtMetaObject() Q_DECL_NOEXCEPT; // defined in qobject.h (which can't be included here)
+const QMetaObject *qt_getQtMetaObject() noexcept; // defined in qobject.h (which can't be included here)
 #define QT_Q_ENUM(ENUM) \
-    inline const QMetaObject *qt_getEnumMetaObject(ENUM) Q_DECL_NOEXCEPT { return qt_getQtMetaObject(); } \
-    inline Q_DECL_CONSTEXPR const char *qt_getEnumName(ENUM) Q_DECL_NOEXCEPT { return #ENUM; }
+    inline const QMetaObject *qt_getEnumMetaObject(ENUM) noexcept { return qt_getQtMetaObject(); } \
+    inline Q_DECL_CONSTEXPR const char *qt_getEnumName(ENUM) noexcept { return #ENUM; }
 #define QT_Q_FLAG(ENUM) QT_Q_ENUM(ENUM)
 #else
 #define QT_Q_ENUM Q_ENUM
@@ -500,7 +500,9 @@ public:
         AA_NativeWindows = 3,
         AA_DontCreateNativeWidgetSiblings = 4,
         AA_PluginApplication = 5,
-        AA_MacPluginApplication = AA_PluginApplication,  // ### Qt 6: remove me
+#if QT_DEPRECATED_SINCE(5, 13) // ### Qt 6: remove me
+        AA_MacPluginApplication Q_DECL_ENUMERATOR_DEPRECATED = AA_PluginApplication,
+#endif
         AA_DontUseNativeMenuBar = 6,
         AA_MacDontSwapCtrlAndMeta = 7,
         AA_Use96Dpi = 8,
@@ -1504,10 +1506,12 @@ public:
         // Metadata
         FontRole = 6,
         TextAlignmentRole = 7,
-        BackgroundColorRole = 8,
         BackgroundRole = 8,
-        TextColorRole = 9,
         ForegroundRole = 9,
+#if QT_DEPRECATED_SINCE(5, 13) // ### Qt 6: remove me
+        BackgroundColorRole Q_DECL_ENUMERATOR_DEPRECATED = BackgroundRole,
+        TextColorRole Q_DECL_ENUMERATOR_DEPRECATED = ForegroundRole,
+#endif
         CheckStateRole = 10,
         // Accessibility
         AccessibleTextRole = 11,
@@ -1610,7 +1614,7 @@ public:
         TitleBarArea    // For move
     };
 
-#if defined(Q_COMPILER_CLASS_ENUM) && defined(Q_COMPILER_CONSTEXPR)
+#if defined(Q_COMPILER_CONSTEXPR)
     enum class Initialization {
         Uninitialized
     };
diff --git a/src/corelib/global/qnamespace.qdoc b/src/corelib/global/qnamespace.qdoc
index 42009e0b5e..5bba8c5fe5 100644
--- a/src/corelib/global/qnamespace.qdoc
+++ b/src/corelib/global/qnamespace.qdoc
@@ -2208,6 +2208,12 @@
     \value MSWindowsFixedSizeDialogHint  Gives the window a thin dialog border on Windows.
            This style is traditionally used for fixed-size dialogs.
 
+           \note The use of this flag is not recommended in multi-monitor
+           environments. This is because the system will enforce that the window
+           maintains its native size when moving it across screens. This is
+           particularly undesirable when using monitors with different
+           resolutions.
+
     \value MSWindowsOwnDC  Gives the window its own display
            context on Windows.
 
@@ -3187,8 +3193,12 @@
 
     \value ScrollUpdate The scrolling distance has changed (default).
 
-    \value ScrollEnd Scrolling has ended, but the scrolling distance
+    \value ScrollEnd Scrolling has ended, and the scrolling distance
     did not change anymore.
+
+    \value ScrollMomentum The user no longer touches the input device,
+    but scrolling continues due to scroll momentum.
+    This value was introduced in Qt 5.12.
 */
 
 /*!
diff --git a/src/corelib/global/qnumeric.cpp b/src/corelib/global/qnumeric.cpp
index c03b139c9f..e6ba62f530 100644
--- a/src/corelib/global/qnumeric.cpp
+++ b/src/corelib/global/qnumeric.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2016 The Qt Company Ltd.
+** Copyright (C) 2019 The Qt Company Ltd.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the QtCore module of the Qt Toolkit.
@@ -46,6 +46,7 @@ QT_BEGIN_NAMESPACE
 /*!
     Returns \c true if the double \a {d} is equivalent to infinity.
     \relates <QtGlobal>
+    \sa qInf()
 */
 Q_CORE_EXPORT bool qIsInf(double d) { return qt_is_inf(d); }
 
@@ -64,6 +65,7 @@ Q_CORE_EXPORT bool qIsFinite(double d) { return qt_is_finite(d); }
 /*!
     Returns \c true if the float \a {f} is equivalent to infinity.
     \relates <QtGlobal>
+    \sa qInf()
 */
 Q_CORE_EXPORT bool qIsInf(float f) { return qt_is_inf(f); }
 
@@ -88,15 +90,36 @@ Q_CORE_EXPORT double qSNaN() { return qt_snan(); }
 /*!
     Returns the bit pattern of a quiet NaN as a double.
     \relates <QtGlobal>
+    \sa qIsNaN()
 */
 Q_CORE_EXPORT double qQNaN() { return qt_qnan(); }
 
 /*!
     Returns the bit pattern for an infinite number as a double.
     \relates <QtGlobal>
+    \sa qIsInf()
 */
 Q_CORE_EXPORT double qInf() { return qt_inf(); }
 
+/*!
+    \relates <QtGlobal>
+    Classifies a floating-point value.
+
+    The return values are defined in \c{<cmath>}: returns one of the following,
+    determined by the floating-point class of \a val:
+    \list
+    \li FP_NAN not a number
+    \li FP_INFINITE infinities (positive or negative)
+    \li FP_NORMAL finite with a full mantissa
+    \li FP_SUBNORMAL finite with a reduced mantissa
+    \endlist
+*/
+Q_CORE_EXPORT int qFpClassify(double val) { return qt_fpclassify(val); }
+
+/*!
+    \overload
+*/
+Q_CORE_EXPORT int qFpClassify(float val) { return qt_fpclassify(val); }
 
 
 /*!
@@ -130,12 +153,7 @@ static inline quint32 f2i(float f)
     two 32-bit floating point numbers and all you need is an approximated 24-bit precision, you can
     use this function like this:
 
-    \code
-    if (qFloatDistance(a, b) < (1 << 7)) {   // The last 7 bits are not
-                                            // significant
-        // precise enough
-    }
-    \endcode
+    \snippet code/src_corelib_global_qnumeric.cpp 0
 
     \sa qFuzzyCompare()
     \since 5.2
diff --git a/src/corelib/global/qnumeric.h b/src/corelib/global/qnumeric.h
index 535a96aaec..6a0c64712f 100644
--- a/src/corelib/global/qnumeric.h
+++ b/src/corelib/global/qnumeric.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2016 The Qt Company Ltd.
+** Copyright (C) 2019 The Qt Company Ltd.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the QtCore module of the Qt Toolkit.
@@ -48,9 +48,11 @@ QT_BEGIN_NAMESPACE
 Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsInf(double d);
 Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsNaN(double d);
 Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsFinite(double d);
+Q_CORE_EXPORT Q_DECL_CONST_FUNCTION int qFpClassify(double val);
 Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsInf(float f);
 Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsNaN(float f);
 Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsFinite(float f);
+Q_CORE_EXPORT Q_DECL_CONST_FUNCTION int qFpClassify(float val);
 Q_CORE_EXPORT Q_DECL_CONST_FUNCTION double qSNaN();
 Q_CORE_EXPORT Q_DECL_CONST_FUNCTION double qQNaN();
 Q_CORE_EXPORT Q_DECL_CONST_FUNCTION double qInf();
diff --git a/src/corelib/global/qnumeric_p.h b/src/corelib/global/qnumeric_p.h
index 9c8514f5a3..21f9cfbef0 100644
--- a/src/corelib/global/qnumeric_p.h
+++ b/src/corelib/global/qnumeric_p.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2016 The Qt Company Ltd.
+** Copyright (C) 2019 The Qt Company Ltd.
 ** Copyright (C) 2018 Intel Corporation.
 ** Contact: https://www.qt.io/licensing/
 **
@@ -58,10 +58,21 @@
 
 #if defined(Q_CC_MSVC)
 #  include <intrin.h>
+#  include <float.h>
+#  if defined(Q_PROCESSOR_X86_64) || defined(Q_PROCESSOR_ARM_64)
+#    define Q_INTRINSIC_MUL_OVERFLOW64
+#    define Q_UMULH(v1, v2) __umulh(v1, v2);
+#    define Q_SMULH(v1, v2) __mulh(v1, v2);
+#    pragma intrinsic(__umulh)
+#    pragma intrinsic(__mulh)
+#  endif
 #endif
 
-#if defined(Q_CC_MSVC)
-#include <float.h>
+# if defined(Q_OS_INTEGRITY) && defined(Q_PROCESSOR_ARM_64)
+#include <arm64_ghs.h>
+#  define Q_INTRINSIC_MUL_OVERFLOW64
+#  define Q_UMULH(v1, v2) __MULUH64(v1, v2);
+#  define Q_SMULH(v1, v2) __MULSH64(v1, v2);
 #endif
 
 #if !defined(Q_CC_MSVC) && (defined(Q_OS_QNX) || defined(Q_CC_INTEL))
@@ -74,9 +85,11 @@ namespace qnumeric_std_wrapper {
 Q_DECL_CONST_FUNCTION static inline bool math_h_isnan(double d) { using namespace std; return isnan(d); }
 Q_DECL_CONST_FUNCTION static inline bool math_h_isinf(double d) { using namespace std; return isinf(d); }
 Q_DECL_CONST_FUNCTION static inline bool math_h_isfinite(double d) { using namespace std; return isfinite(d); }
+Q_DECL_CONST_FUNCTION static inline int math_h_fpclassify(double d) { using namespace std; return fpclassify(d); }
 Q_DECL_CONST_FUNCTION static inline bool math_h_isnan(float f) { using namespace std; return isnan(f); }
 Q_DECL_CONST_FUNCTION static inline bool math_h_isinf(float f) { using namespace std; return isinf(f); }
 Q_DECL_CONST_FUNCTION static inline bool math_h_isfinite(float f) { using namespace std; return isfinite(f); }
+Q_DECL_CONST_FUNCTION static inline int math_h_fpclassify(float f) { using namespace std; return fpclassify(f); }
 }
 QT_END_NAMESPACE
 // These macros from math.h conflict with the real functions in the std namespace.
@@ -84,6 +97,7 @@ QT_END_NAMESPACE
 #    undef isnan
 #    undef isinf
 #    undef isfinite
+#    undef fpclassify
 #  endif // defined(isnan)
 #endif
 
@@ -95,20 +109,24 @@ namespace qnumeric_std_wrapper {
 Q_DECL_CONST_FUNCTION static inline bool isnan(double d) { return math_h_isnan(d); }
 Q_DECL_CONST_FUNCTION static inline bool isinf(double d) { return math_h_isinf(d); }
 Q_DECL_CONST_FUNCTION static inline bool isfinite(double d) { return math_h_isfinite(d); }
+Q_DECL_CONST_FUNCTION static inline int fpclassify(double d) { return math_h_fpclassify(d); }
 Q_DECL_CONST_FUNCTION static inline bool isnan(float f) { return math_h_isnan(f); }
 Q_DECL_CONST_FUNCTION static inline bool isinf(float f) { return math_h_isinf(f); }
 Q_DECL_CONST_FUNCTION static inline bool isfinite(float f) { return math_h_isfinite(f); }
+Q_DECL_CONST_FUNCTION static inline int fpclassify(float f) { return math_h_fpclassify(f); }
 #else
 Q_DECL_CONST_FUNCTION static inline bool isnan(double d) { return std::isnan(d); }
 Q_DECL_CONST_FUNCTION static inline bool isinf(double d) { return std::isinf(d); }
 Q_DECL_CONST_FUNCTION static inline bool isfinite(double d) { return std::isfinite(d); }
+Q_DECL_CONST_FUNCTION static inline int fpclassify(double d) { return std::fpclassify(d); }
 Q_DECL_CONST_FUNCTION static inline bool isnan(float f) { return std::isnan(f); }
 Q_DECL_CONST_FUNCTION static inline bool isinf(float f) { return std::isinf(f); }
 Q_DECL_CONST_FUNCTION static inline bool isfinite(float f) { return std::isfinite(f); }
+Q_DECL_CONST_FUNCTION static inline int fpclassify(float f) { return std::fpclassify(f); }
 #endif
 }
 
-Q_DECL_CONSTEXPR Q_DECL_CONST_FUNCTION static inline double qt_inf() Q_DECL_NOEXCEPT
+Q_DECL_CONSTEXPR Q_DECL_CONST_FUNCTION static inline double qt_inf() noexcept
 {
     Q_STATIC_ASSERT_X(std::numeric_limits<double>::has_infinity,
                       "platform has no definition for infinity for type double");
@@ -116,7 +134,7 @@ Q_DECL_CONSTEXPR Q_DECL_CONST_FUNCTION static inline double qt_inf() Q_DECL_NOEX
 }
 
 // Signaling NaN
-Q_DECL_CONSTEXPR Q_DECL_CONST_FUNCTION static inline double qt_snan() Q_DECL_NOEXCEPT
+Q_DECL_CONSTEXPR Q_DECL_CONST_FUNCTION static inline double qt_snan() noexcept
 {
     Q_STATIC_ASSERT_X(std::numeric_limits<double>::has_signaling_NaN,
                       "platform has no definition for signaling NaN for type double");
@@ -124,7 +142,7 @@ Q_DECL_CONSTEXPR Q_DECL_CONST_FUNCTION static inline double qt_snan() Q_DECL_NOE
 }
 
 // Quiet NaN
-Q_DECL_CONSTEXPR Q_DECL_CONST_FUNCTION static inline double qt_qnan() Q_DECL_NOEXCEPT
+Q_DECL_CONSTEXPR Q_DECL_CONST_FUNCTION static inline double qt_qnan() noexcept
 {
     Q_STATIC_ASSERT_X(std::numeric_limits<double>::has_quiet_NaN,
                       "platform has no definition for quiet NaN for type double");
@@ -146,6 +164,11 @@ Q_DECL_CONST_FUNCTION static inline bool qt_is_finite(double d)
     return qnumeric_std_wrapper::isfinite(d);
 }
 
+Q_DECL_CONST_FUNCTION static inline int qt_fpclassify(double d)
+{
+    return qnumeric_std_wrapper::fpclassify(d);
+}
+
 Q_DECL_CONST_FUNCTION static inline bool qt_is_inf(float f)
 {
     return qnumeric_std_wrapper::isinf(f);
@@ -161,6 +184,11 @@ Q_DECL_CONST_FUNCTION static inline bool qt_is_finite(float f)
     return qnumeric_std_wrapper::isfinite(f);
 }
 
+Q_DECL_CONST_FUNCTION static inline int qt_fpclassify(float f)
+{
+    return qnumeric_std_wrapper::fpclassify(f);
+}
+
 #ifndef Q_CLANG_QDOC
 namespace {
 /*!
@@ -220,7 +248,7 @@ QT_WARNING_POP
 // size_t. Implementations for 8- and 16-bit types will work but may not be as
 // efficient. Implementations for 64-bit may be missing on 32-bit platforms.
 
-#if (defined(Q_CC_GNU) && (Q_CC_GNU >= 500) || (defined(Q_CC_INTEL) && !defined(Q_OS_WIN))) || QT_HAS_BUILTIN(__builtin_add_overflowx)
+#if (defined(Q_CC_GNU) && (Q_CC_GNU >= 500) || (defined(Q_CC_INTEL) && !defined(Q_OS_WIN))) || QT_HAS_BUILTIN(__builtin_add_overflow)
 // GCC 5, ICC 18, and Clang 3.8 have builtins to detect overflows
 
 template <typename T> inline
@@ -323,6 +351,38 @@ mul_overflow(T v1, T v2, T *r)
     return lr > std::numeric_limits<T>::max() || lr < std::numeric_limits<T>::min();
 }
 
+# if defined(Q_INTRINSIC_MUL_OVERFLOW64)
+template <> inline bool mul_overflow(quint64 v1, quint64 v2, quint64 *r)
+{
+    *r = v1 * v2;
+    return Q_UMULH(v1, v2);
+}
+template <> inline bool mul_overflow(qint64 v1, qint64 v2, qint64 *r)
+{
+    // This is slightly more complex than the unsigned case above: the sign bit
+    // of 'low' must be replicated as the entire 'high', so the only valid
+    // values for 'high' are 0 and -1. Use unsigned multiply since it's the same
+    // as signed for the low bits and use a signed right shift to verify that
+    // 'high' is nothing but sign bits that match the sign of 'low'.
+
+    qint64 high = Q_SMULH(v1, v2);
+    *r = qint64(quint64(v1) * quint64(v2));
+    return (*r >> 63) != high;
+}
+
+#   if defined(Q_OS_INTEGRITY) && defined(Q_PROCESSOR_ARM_64)
+template <> inline bool mul_overflow(uint64_t v1, uint64_t v2, uint64_t *r)
+{
+    return mul_overflow<quint64>(v1,v2,reinterpret_cast<quint64*>(r));
+}
+
+template <> inline bool mul_overflow(int64_t v1, int64_t v2, int64_t *r)
+{
+    return mul_overflow<qint64>(v1,v2,reinterpret_cast<qint64*>(r));
+}
+#    endif // OS_INTEGRITY ARM64
+#  endif // Q_INTRINSIC_MUL_OVERFLOW64
+
 #  if defined(Q_CC_MSVC) && defined(Q_PROCESSOR_X86)
 // We can use intrinsics for the unsigned operations with MSVC
 template <> inline bool add_overflow(unsigned v1, unsigned v2, unsigned *r)
@@ -330,40 +390,19 @@ template <> inline bool add_overflow(unsigned v1, unsigned v2, unsigned *r)
 
 // 32-bit mul_overflow is fine with the generic code above
 
-#    if defined(Q_PROCESSOR_X86_64)
 template <> inline bool add_overflow(quint64 v1, quint64 v2, quint64 *r)
-{ return _addcarry_u64(0, v1, v2, reinterpret_cast<unsigned __int64 *>(r)); }
-
-#    pragma intrinsic(_umul128)
-template <> inline bool mul_overflow(quint64 v1, quint64 v2, quint64 *r)
 {
-    // use 128-bit multiplication with the _umul128 intrinsic
-    // https://msdn.microsoft.com/en-us/library/3dayytw9.aspx
-    quint64 high;
-    *r = _umul128(v1, v2, &high);
-    return high;
-}
-
-#    pragma intrinsic(_mul128)
-template <> inline bool mul_overflow(qint64 v1, qint64 v2, qint64 *r)
-{
-    // Use 128-bit multiplication with the _mul128 intrinsic
-    // https://msdn.microsoft.com/en-us/library/82cxdw50.aspx
-
-    // This is slightly more complex than the unsigned case above: the sign bit
-    // of 'low' must be replicated as the entire 'high', so the only valid
-    // values for 'high' are 0 and -1.
-
-    qint64 high;
-    *r = _mul128(v1, v2, &high);
-    if (high == 0)
-        return *r < 0;
-    if (high == -1)
-        return *r >= 0;
-    return true;
+#    if defined(Q_PROCESSOR_X86_64)
+    return _addcarry_u64(0, v1, v2, reinterpret_cast<unsigned __int64 *>(r));
+#    else
+    uint low, high;
+    uchar carry = _addcarry_u32(0, unsigned(v1), unsigned(v2), &low);
+    carry = _addcarry_u32(carry, v1 >> 32, v2 >> 32, &high);
+    *r = (quint64(high) << 32) | low;
+    return carry;
+#    endif // !x86-64
 }
-#    endif // x86-64
-#  endif // MSVC x86
+#  endif // MSVC X86
 #endif // !GCC
 }
 #endif // Q_CLANG_QDOC
diff --git a/src/corelib/global/qoperatingsystemversion.cpp b/src/corelib/global/qoperatingsystemversion.cpp
index 2f8d339ca7..94dc261b41 100644
--- a/src/corelib/global/qoperatingsystemversion.cpp
+++ b/src/corelib/global/qoperatingsystemversion.cpp
@@ -106,20 +106,12 @@ QT_BEGIN_NAMESPACE
     major version number component of the object on the left hand side of the expression (10) is
     greater than that of the object on the right (9):
 
-    \code
-    QOperatingSystemVersion::current() >= QOperatingSystemVersion(QOperatingSystemVersion::IOS, 9)
-    \endcode
+    \snippet code/src_corelib_global_qoperatingsystemversion.cpp 0
 
     This allows expressions for multiple operating systems to be joined with a logical OR operator
     and still work as expected. For example:
 
-    \code
-    auto current = QOperatingSystemVersion::current();
-    if (current >= QOperatingSystemVersion::OSXYosemite ||
-        current >= QOperatingSystemVersion(QOperatingSystemVersion::IOS, 8)) {
-        // returns true on macOS >= 10.10 and iOS >= 8.0, but false on macOS < 10.10 and iOS < 8.0
-    }
-    \endcode
+    \snippet code/src_corelib_global_qoperatingsystemversion.cpp 1
 
     A more naive comparison algorithm might incorrectly return true on all versions of macOS,
     including Mac OS 9. This behavior is achieved by overloading the comparison operators to return
diff --git a/src/corelib/global/qprocessordetection.h b/src/corelib/global/qprocessordetection.h
index aaa27dff4a..1f327c352e 100644
--- a/src/corelib/global/qprocessordetection.h
+++ b/src/corelib/global/qprocessordetection.h
@@ -94,8 +94,8 @@
     ARM is bi-endian, detect using __ARMEL__ or __ARMEB__, falling back to
     auto-detection implemented below.
 */
-#if defined(__arm__) || defined(__TARGET_ARCH_ARM) || defined(_M_ARM) || defined(__aarch64__) || defined(__ARM64__)
-#  if defined(__aarch64__) || defined(__ARM64__)
+#if defined(__arm__) || defined(__TARGET_ARCH_ARM) || defined(_M_ARM) || defined(_M_ARM64) || defined(__aarch64__) || defined(__ARM64__)
+#  if defined(__aarch64__) || defined(__ARM64__) || defined(_M_ARM64)
 #    define Q_PROCESSOR_ARM_64
 #    define Q_PROCESSOR_WORDSIZE 8
 #  else
@@ -110,7 +110,8 @@
 #  elif defined(__ARM64_ARCH_8__) \
       || defined(__aarch64__) \
       || defined(__ARMv8__) \
-      || defined(__ARMv8_A__)
+      || defined(__ARMv8_A__) \
+      || defined(_M_ARM64)
 #    define Q_PROCESSOR_ARM 8
 #  elif defined(__ARM_ARCH_7__) \
       || defined(__ARM_ARCH_7A__) \
@@ -148,7 +149,7 @@
 #  else
 #    error "ARM architecture too old"
 #  endif
-#  if defined(__ARMEL__)
+#  if defined(__ARMEL__) || defined(_M_ARM64)
 #    define Q_BYTE_ORDER Q_LITTLE_ENDIAN
 #  elif defined(__ARMEB__)
 #    define Q_BYTE_ORDER Q_BIG_ENDIAN
@@ -323,7 +324,6 @@
 // -- Web Assembly --
 #elif defined(__EMSCRIPTEN__)
 #  define Q_PROCESSOR_WASM
-#  define Q_PROCESSOR_X86 6   // enables SIMD support
 #  define Q_BYTE_ORDER Q_LITTLE_ENDIAN
 #  define Q_PROCESSOR_WORDSIZE 8
 #endif
diff --git a/src/corelib/global/qrandom.cpp b/src/corelib/global/qrandom.cpp
index a7d4aa303a..2ee8f0dd01 100644
--- a/src/corelib/global/qrandom.cpp
+++ b/src/corelib/global/qrandom.cpp
@@ -48,7 +48,7 @@
 
 #include <errno.h>
 
-#if !QT_CONFIG(getentropy) && !defined(Q_OS_BSD4) && !defined(Q_OS_WIN)
+#if !QT_CONFIG(getentropy) && (!defined(Q_OS_BSD4) || defined(__GLIBC__)) && !defined(Q_OS_WIN)
 #  include "qdeadlinetimer.h"
 #  include "qhashfunctions.h"
 
@@ -91,7 +91,7 @@ DECLSPEC_IMPORT BOOLEAN WINAPI SystemFunction036(PVOID RandomBuffer, ULONG Rando
 QT_BEGIN_NAMESPACE
 
 #if defined(Q_PROCESSOR_X86) && QT_COMPILER_SUPPORTS_HERE(RDRND)
-static qsizetype qt_random_cpu(void *buffer, qsizetype count) Q_DECL_NOTHROW;
+static qsizetype qt_random_cpu(void *buffer, qsizetype count) noexcept;
 
 #  ifdef Q_PROCESSOR_X86_64
 #    define _rdrandXX_step _rdrand64_step
@@ -99,7 +99,7 @@ static qsizetype qt_random_cpu(void *buffer, qsizetype count) Q_DECL_NOTHROW;
 #    define _rdrandXX_step _rdrand32_step
 #  endif
 
-static QT_FUNCTION_TARGET(RDRND) qsizetype qt_random_cpu(void *buffer, qsizetype count) Q_DECL_NOTHROW
+static QT_FUNCTION_TARGET(RDRND) qsizetype qt_random_cpu(void *buffer, qsizetype count) noexcept
 {
     unsigned *ptr = reinterpret_cast<unsigned *>(buffer);
     unsigned *end = ptr + count;
@@ -134,7 +134,7 @@ enum {
 struct QRandomGenerator::SystemGenerator
 {
 #if QT_CONFIG(getentropy)
-    static qsizetype fillBuffer(void *buffer, qsizetype count) Q_DECL_NOTHROW
+    static qsizetype fillBuffer(void *buffer, qsizetype count) noexcept
     {
         // getentropy can read at most 256 bytes, so break the reading
         qsizetype read = 0;
@@ -204,13 +204,13 @@ struct QRandomGenerator::SystemGenerator
     }
 
 #elif defined(Q_OS_WIN) && !defined(Q_OS_WINRT)
-    qsizetype fillBuffer(void *buffer, qsizetype count) Q_DECL_NOTHROW
+    qsizetype fillBuffer(void *buffer, qsizetype count) noexcept
     {
         auto RtlGenRandom = SystemFunction036;
         return RtlGenRandom(buffer, ULONG(count)) ? count: 0;
     }
 #elif defined(Q_OS_WINRT)
-    qsizetype fillBuffer(void *, qsizetype) Q_DECL_NOTHROW
+    qsizetype fillBuffer(void *, qsizetype) noexcept
     {
         // always use the fallback
         return 0;
@@ -218,7 +218,8 @@ struct QRandomGenerator::SystemGenerator
 #endif // Q_OS_WINRT
 
     static SystemGenerator &self();
-    void generate(quint32 *begin, quint32 *end) Q_DECL_NOEXCEPT_EXPR(FillBufferNoexcept);
+    typedef quint32 result_type;
+    void generate(quint32 *begin, quint32 *end) noexcept(FillBufferNoexcept);
 
     // For std::mersenne_twister_engine implementations that use something
     // other than quint32 (unsigned int) to fill their buffers.
@@ -241,7 +242,7 @@ struct QRandomGenerator::SystemGenerator
 
 #if defined(Q_OS_WIN)
 static void fallback_update_seed(unsigned) {}
-static void fallback_fill(quint32 *ptr, qsizetype left) Q_DECL_NOTHROW
+static void fallback_fill(quint32 *ptr, qsizetype left) noexcept
 {
     // on Windows, rand_s is a high-quality random number generator
     // and it requires no seeding
@@ -253,14 +254,14 @@ static void fallback_fill(quint32 *ptr, qsizetype left) Q_DECL_NOTHROW
 }
 #elif QT_CONFIG(getentropy)
 static void fallback_update_seed(unsigned) {}
-static void fallback_fill(quint32 *, qsizetype) Q_DECL_NOTHROW
+static void fallback_fill(quint32 *, qsizetype) noexcept
 {
     // no fallback necessary, getentropy cannot fail under normal circumstances
     Q_UNREACHABLE();
 }
-#elif defined(Q_OS_BSD4)
+#elif defined(Q_OS_BSD4) && !defined(__GLIBC__)
 static void fallback_update_seed(unsigned) {}
-static void fallback_fill(quint32 *ptr, qsizetype left) Q_DECL_NOTHROW
+static void fallback_fill(quint32 *ptr, qsizetype left) noexcept
 {
     // BSDs have arc4random(4) and these work even in chroot(2)
     arc4random_buf(ptr, left * sizeof(*ptr));
@@ -279,7 +280,7 @@ Q_NEVER_INLINE
 #ifdef Q_CC_GNU
 __attribute__((cold))   // this function is pretty big, so optimize for size
 #endif
-static void fallback_fill(quint32 *ptr, qsizetype left) Q_DECL_NOTHROW
+static void fallback_fill(quint32 *ptr, qsizetype left) noexcept
 {
     quint32 scratch[12];    // see element count below
     quint32 *end = scratch;
@@ -353,7 +354,7 @@ static void fallback_fill(quint32 *ptr, qsizetype left) Q_DECL_NOTHROW
 #endif
 
 Q_NEVER_INLINE void QRandomGenerator::SystemGenerator::generate(quint32 *begin, quint32 *end)
-    Q_DECL_NOEXCEPT_EXPR(FillBufferNoexcept)
+    noexcept(FillBufferNoexcept)
 {
     quint32 *buffer = begin;
     qsizetype count = end - begin;
@@ -510,9 +511,7 @@ inline QRandomGenerator::SystemGenerator &QRandomGenerator::SystemGenerator::sel
     those. The most common way of generating new values is to call the generate(),
     generate64() or fillRange() functions. One would use it as:
 
-    \code
-        quint32 value = QRandomGenerator::global()->generate();
-    \endcode
+    \snippet code/src_corelib_global_qrandom.cpp 0
 
     Additionally, it provides a floating-point function generateDouble() that
     returns a number in the range [0, 1) (that is, inclusive of zero and
@@ -525,11 +524,7 @@ inline QRandomGenerator::SystemGenerator &QRandomGenerator::SystemGenerator::sel
     the numbers generated by the object will always be the same, as in the
     following example:
 
-    \code
-        QRandomGenerator prng1(1234), prng2(1234);
-        Q_ASSERT(prng1.generate() == prng2.generate());
-        Q_ASSERT(prng1.generate64() == prng2.generate64());
-    \endcode
+    \snippet code/src_corelib_global_qrandom.cpp 1
 
     The seed data takes the form of one or more 32-bit words. The ideal seed
     size is approximately equal to the size of the QRandomGenerator class
@@ -552,12 +547,7 @@ inline QRandomGenerator::SystemGenerator &QRandomGenerator::SystemGenerator::sel
     For ease of use, QRandomGenerator provides a global object that can
     be easily used, as in the following example:
 
-    \code
-        int x = QRandomGenerator::global()->generate();
-        int y = QRandomGenerator::global()->generate();
-        int w = QRandomGenerator::global()->bounded(16384);
-        int h = QRandomGenerator::global()->bounded(16384);
-    \endcode
+    \snippet code/src_corelib_global_qrandom.cpp 2
 
     \section1 System-wide random number generator
 
@@ -645,10 +635,7 @@ inline QRandomGenerator::SystemGenerator &QRandomGenerator::SystemGenerator::sel
     following code may be used to generate a floating-point number in the range
     [1, 2.5):
 
-    \code
-        std::uniform_real_distribution dist(1, 2.5);
-        return dist(*QRandomGenerator::global());
-    \endcode
+    \snippet code/src_corelib_global_qrandom.cpp 3
 
     \sa QRandomGenerator64, qrand()
  */
@@ -688,10 +675,7 @@ inline QRandomGenerator::SystemGenerator &QRandomGenerator::SystemGenerator::sel
     with the same seed value will produce the same number sequence.
 
     This constructor is equivalent to:
-    \code
-        std::seed_seq sseq(seedBuffer, seedBuffer + len);
-        QRandomGenerator generator(sseq);
-    \endcode
+    \snippet code/src_corelib_global_qrandom.cpp 4
 
     \sa seed(), securelySeeded()
  */
@@ -705,10 +689,7 @@ inline QRandomGenerator::SystemGenerator &QRandomGenerator::SystemGenerator::sel
     with the same seed value will produce the same number sequence.
 
     This constructor is equivalent to:
-    \code
-        std::seed_seq sseq(begin, end);
-        QRandomGenerator generator(sseq);
-    \endcode
+    \snippet code/src_corelib_global_qrandom.cpp 5
 
     \sa seed(), securelySeeded()
  */
@@ -828,10 +809,7 @@ inline QRandomGenerator::SystemGenerator &QRandomGenerator::SystemGenerator::sel
     Discards the next \a z entries from the sequence. This method is equivalent
     to calling generate() \a z times and discarding the result, as in:
 
-    \code
-        while (z--)
-            generator.generate();
-    \endcode
+    \snippet code/src_corelib_global_qrandom.cpp 6
 */
 
 /*!
@@ -840,9 +818,7 @@ inline QRandomGenerator::SystemGenerator &QRandomGenerator::SystemGenerator::sel
     Generates 32-bit quantities and stores them in the range between \a begin
     and \a end. This function is equivalent to (and is implemented as):
 
-    \code
-        std::generate(begin, end, [this]() { return generate(); });
-    \endcode
+    \snippet code/src_corelib_global_qrandom.cpp 7
 
     This function complies with the requirements for the function
     \l{http://en.cppreference.com/w/cpp/numeric/random/seed_seq/generate}{\c std::seed_seq::generate},
@@ -853,9 +829,7 @@ inline QRandomGenerator::SystemGenerator &QRandomGenerator::SystemGenerator::sel
     32 bits of data. Any other bits will be zero. To fill the range with 64 bit
     quantities, one can write:
 
-    \code
-        std::generate(begin, end, []() { return QRandomGenerator::global()->generate64(); });
-    \endcode
+    \snippet code/src_corelib_global_qrandom.cpp 8
 
     If the range refers to contiguous memory (such as an array or the data from
     a QVector), the fillRange() function may be used too.
@@ -882,11 +856,7 @@ inline QRandomGenerator::SystemGenerator &QRandomGenerator::SystemGenerator::sel
     For example, to fill a vector of 16 entries with random values, one may
     write:
 
-    \code
-        QVector<quint32> vector;
-        vector.resize(16);
-        QRandomGenerator::fillRange(vector.data(), vector.size());
-    \endcode
+    \snippet code/src_corelib_global_qrandom.cpp 9
 
     \sa generate()
  */
@@ -901,10 +871,7 @@ inline QRandomGenerator::SystemGenerator &QRandomGenerator::SystemGenerator::sel
 
     For example, to fill generate two 32-bit quantities, one may write:
 
-    \code
-        quint32 array[2];
-        QRandomGenerator::fillRange(array);
-    \endcode
+    \snippet code/src_corelib_global_qrandom.cpp 10
 
     It would have also been possible to make one call to generate64() and then split
     the two halves of the 64-bit value.
@@ -919,10 +886,7 @@ inline QRandomGenerator::SystemGenerator &QRandomGenerator::SystemGenerator::sel
     inclusive of zero and exclusive of 1).
 
     This function is equivalent to:
-    \code
-        QRandomGenerator64 rd;
-        return std::generate_canonical<qreal, std::numeric_limits<qreal>::digits>(rd);
-    \endcode
+    \snippet code/src_corelib_global_qrandom.cpp 11
 
     The same may also be obtained by using
     \l{http://en.cppreference.com/w/cpp/numeric/random/uniform_real_distribution}{\c std::uniform_real_distribution}
@@ -937,9 +901,7 @@ inline QRandomGenerator::SystemGenerator &QRandomGenerator::SystemGenerator::sel
     Generates one random double in the range between 0 (inclusive) and \a
     highest (exclusive). This function is equivalent to and is implemented as:
 
-    \code
-        return generateDouble() * highest;
-    \endcode
+    \snippet code/src_corelib_global_qrandom.cpp 12
 
     \sa generateDouble(), bounded()
  */
@@ -956,9 +918,7 @@ inline QRandomGenerator::SystemGenerator &QRandomGenerator::SystemGenerator::sel
 
     For example, to obtain a value between 0 and 255 (inclusive), one would write:
 
-    \code
-        quint32 v = QRandomGenerator::bounded(256);
-    \endcode
+    \snippet code/src_corelib_global_qrandom.cpp 13
 
     Naturally, the same could also be obtained by masking the result of generate()
     to only the lower 8 bits. Either solution is as efficient.
@@ -970,7 +930,7 @@ inline QRandomGenerator::SystemGenerator &QRandomGenerator::SystemGenerator::sel
  */
 
 /*!
-    \fn quint32 QRandomGenerator::bounded(int highest)
+    \fn int QRandomGenerator::bounded(int highest)
     \overload
 
     Generates one random 32-bit quantity in the range between 0 (inclusive) and
@@ -995,10 +955,7 @@ inline QRandomGenerator::SystemGenerator &QRandomGenerator::SystemGenerator::sel
     For example, to obtain a value between 1000 (incl.) and 2000 (excl.), one
     would write:
 
-    \code
-        quint32 v = QRandomGenerator::bounded(1000, 2000);
-    \endcode
-
+    \snippet code/src_corelib_global_qrandom.cpp 14
 
     Note that this function cannot be used to obtain values in the full 32-bit
     range of quint32. Instead, use generate().
@@ -1007,7 +964,7 @@ inline QRandomGenerator::SystemGenerator &QRandomGenerator::SystemGenerator::sel
  */
 
 /*!
-    \fn quint32 QRandomGenerator::bounded(int lowest, int highest)
+    \fn int QRandomGenerator::bounded(int lowest, int highest)
     \overload
 
     Generates one random 32-bit quantity in the range between \a lowest
@@ -1053,9 +1010,7 @@ inline QRandomGenerator::SystemGenerator &QRandomGenerator::SystemGenerator::sel
 
     For example, the following creates a random RGB color:
 
-    \code
-        return QColor::fromRgb(QRandomGenerator::global()->generate());
-    \endcode
+    \snippet code/src_corelib_global_qrandom.cpp 15
 
     Accesses to this object are thread-safe and it may therefore be used in any
     thread without locks. The object may also be copied and the sequence
@@ -1123,9 +1078,7 @@ inline QRandomGenerator::SystemGenerator &QRandomGenerator::SystemGenerator::sel
     set. If you wish to cast the returned value to qint64 and keep it positive,
     you should mask the sign bit off:
 
-    \code
-        qint64 value = QRandomGenerator64::generate() & std::numeric_limits<qint64>::max();
-    \endcode
+    \snippet code/src_corelib_global_qrandom.cpp 16
 
     \sa QRandomGenerator, QRandomGenerator::generate64()
  */
@@ -1214,7 +1167,7 @@ QRandomGenerator &QRandomGenerator::operator=(const QRandomGenerator &other)
     return *this;
 }
 
-QRandomGenerator::QRandomGenerator(std::seed_seq &sseq) Q_DECL_NOTHROW
+QRandomGenerator::QRandomGenerator(std::seed_seq &sseq) noexcept
     : type(MersenneTwister)
 {
     Q_ASSERT(this != system());
diff --git a/src/corelib/global/qrandom.h b/src/corelib/global/qrandom.h
index 46d3e0e152..2f72528266 100644
--- a/src/corelib/global/qrandom.h
+++ b/src/corelib/global/qrandom.h
@@ -68,7 +68,7 @@ public:
     QRandomGenerator(const quint32 *seedBuffer, qsizetype len)
         : QRandomGenerator(seedBuffer, seedBuffer + len)
     {}
-    Q_CORE_EXPORT QRandomGenerator(std::seed_seq &sseq) Q_DECL_NOTHROW;
+    Q_CORE_EXPORT QRandomGenerator(std::seed_seq &sseq) noexcept;
     Q_CORE_EXPORT QRandomGenerator(const quint32 *begin, const quint32 *end);
 
     // copy constructor & assignment operator (move unnecessary)
@@ -165,7 +165,7 @@ public:
     typedef quint32 result_type;
     result_type operator()() { return generate(); }
     void seed(quint32 s = 1) { *this = { s }; }
-    void seed(std::seed_seq &sseq) Q_DECL_NOTHROW { *this = { sseq }; }
+    void seed(std::seed_seq &sseq) noexcept { *this = { sseq }; }
     Q_CORE_EXPORT void discard(unsigned long long z);
     static Q_DECL_CONSTEXPR result_type min() { return std::numeric_limits<result_type>::min(); }
     static Q_DECL_CONSTEXPR result_type max() { return std::numeric_limits<result_type>::max(); }
@@ -228,7 +228,7 @@ public:
     QRandomGenerator64(const quint32 *seedBuffer, qsizetype len)
         : QRandomGenerator(seedBuffer, len)
     {}
-    QRandomGenerator64(std::seed_seq &sseq) Q_DECL_NOTHROW
+    QRandomGenerator64(std::seed_seq &sseq) noexcept
         : QRandomGenerator(sseq)
     {}
     QRandomGenerator64(const quint32 *begin, const quint32 *end)
diff --git a/src/corelib/global/qt_pch.h b/src/corelib/global/qt_pch.h
index b3b526342d..3972991618 100644
--- a/src/corelib/global/qt_pch.h
+++ b/src/corelib/global/qt_pch.h
@@ -60,11 +60,19 @@
 # undef _POSIX_
 #endif
 #include <qcoreapplication.h>
+#include <qcoreevent.h>
+#include <qiodevice.h>
 #include <qlist.h>
 #include <qvariant.h>  /* All moc genereated code has this include */
 #include <qobject.h>
 #include <qregexp.h>
+#include <qscopedpointer.h>
+#include <qshareddata.h>
 #include <qstring.h>
 #include <qstringlist.h>
+#include <qtimer.h>
+#include <qvector.h>
+#if QT_CONFIG(textcodec)
 #include <qtextcodec.h>
 #endif
+#endif
diff --git a/src/corelib/global/qtrace_p.h b/src/corelib/global/qtrace_p.h
index 3d04a7311d..b72fdd886d 100644
--- a/src/corelib/global/qtrace_p.h
+++ b/src/corelib/global/qtrace_p.h
@@ -52,11 +52,18 @@
 //
 
 /*
- * The Qt tracepoints API consists of only three macros:
+ * The Qt tracepoints API consists of only five macros:
  *
  *     - Q_TRACE(tracepoint, args...)
  *       Fires 'tracepoint' if it is enabled.
  *
+ *     - Q_TRACE_EXIT(tracepoint, args...)
+ *       Fires 'tracepoint' if it is enabled when the current scope exists.
+ *
+ *     - Q_TRACE_SCOPE(tracepoint, args...)
+ *       Wrapper around Q_TRACE/_EXIT to trace entry and exit. First it traces
+ *       `${tracepoint}_entry` and then `${tracepoint}_exit` on scope exit.
+ *
  *     - Q_UNCONDITIONAL_TRACE(tracepoint, args...)
  *       Fires 'tracepoint' unconditionally: no check is performed to query
  *       whether 'tracepoint' is enabled.
@@ -110,15 +117,25 @@
  */
 
 #include <QtCore/qglobal.h>
+#include <QtCore/qscopeguard.h>
 
 QT_BEGIN_NAMESPACE
 
 #if defined(Q_TRACEPOINT) && !defined(QT_BOOTSTRAPPED)
+#  define Q_HAS_TRACEPOINTS 1
 #  define Q_TRACE(x, ...) QtPrivate::trace_ ## x(__VA_ARGS__)
+#  define Q_TRACE_EXIT(x, ...) \
+    const auto qTraceExit_ ## x ## __COUNTER__ = qScopeGuard([&]() { Q_TRACE(x, __VA_ARGS__); });
+#  define Q_TRACE_SCOPE(x, ...) \
+    Q_TRACE(x ## _entry, __VA_ARGS__); \
+    Q_TRACE_EXIT(x ## _exit, __VA_ARGS__);
 #  define Q_UNCONDITIONAL_TRACE(x, ...) QtPrivate::do_trace_ ## x(__VA_ARGS__)
 #  define Q_TRACE_ENABLED(x) QtPrivate::trace_ ## x ## _enabled()
 #else
+#  define Q_HAS_TRACEPOINTS 0
 #  define Q_TRACE(x, ...)
+#  define Q_TRACE_EXIT(x, ...)
+#  define Q_TRACE_SCOPE(x, ...)
 #  define Q_UNCONDITIONAL_TRACE(x, ...)
 #  define Q_TRACE_ENABLED(x) false
 #endif // defined(Q_TRACEPOINT) && !defined(QT_BOOTSTRAPPED)
diff --git a/src/corelib/global/qtypeinfo.h b/src/corelib/global/qtypeinfo.h
index 4f79c48c51..636dc24c07 100644
--- a/src/corelib/global/qtypeinfo.h
+++ b/src/corelib/global/qtypeinfo.h
@@ -49,6 +49,26 @@ QT_BEGIN_NAMESPACE
    QTypeInfo     - type trait functionality
 */
 
+template <typename T>
+static constexpr bool qIsRelocatable()
+{
+#if defined(Q_CC_CLANG) || !defined(Q_CC_GNU) || Q_CC_GNU >= 501
+    return std::is_trivially_copyable<T>::value && std::is_trivially_destructible<T>::value;
+#else
+    return std::is_enum<T>::value || std::is_integral<T>::value;
+#endif
+}
+
+template <typename T>
+static constexpr bool qIsTrivial()
+{
+#if defined(Q_CC_CLANG) || !defined(Q_CC_GNU) || Q_CC_GNU >= 501
+    return std::is_trivial<T>::value;
+#else
+    return std::is_enum<T>::value || std::is_integral<T>::value;
+#endif
+}
+
 /*
   The catch-all template.
 */
@@ -61,9 +81,9 @@ public:
         isSpecialized = std::is_enum<T>::value, // don't require every enum to be marked manually
         isPointer = false,
         isIntegral = std::is_integral<T>::value,
-        isComplex = !isIntegral && !std::is_enum<T>::value,
+        isComplex = !qIsTrivial<T>(),
         isStatic = true,
-        isRelocatable = std::is_enum<T>::value,
+        isRelocatable = qIsRelocatable<T>(),
         isLarge = (sizeof(T)>sizeof(void*)),
         isDummy = false, //### Qt6: remove
         sizeOf = sizeof(T)
@@ -248,9 +268,9 @@ class QTypeInfo<TYPE > \
 public: \
     enum { \
         isSpecialized = true, \
-        isComplex = (((FLAGS) & Q_PRIMITIVE_TYPE) == 0), \
+        isComplex = (((FLAGS) & Q_PRIMITIVE_TYPE) == 0) && !qIsTrivial<TYPE>(), \
         isStatic = (((FLAGS) & (Q_MOVABLE_TYPE | Q_PRIMITIVE_TYPE)) == 0), \
-        isRelocatable = !isStatic || ((FLAGS) & Q_RELOCATABLE_TYPE), \
+        isRelocatable = !isStatic || ((FLAGS) & Q_RELOCATABLE_TYPE) || qIsRelocatable<TYPE>(), \
         isLarge = (sizeof(TYPE)>sizeof(void*)), \
         isPointer = false, \
         isIntegral = std::is_integral< TYPE >::value, \
@@ -288,7 +308,7 @@ Q_DECLARE_TYPEINFO_BODY(QFlags<T>, Q_PRIMITIVE_TYPE);
 #define Q_DECLARE_SHARED_IMPL(TYPE, FLAGS) \
 Q_DECLARE_TYPEINFO(TYPE, FLAGS); \
 inline void swap(TYPE &value1, TYPE &value2) \
-    Q_DECL_NOEXCEPT_EXPR(noexcept(value1.swap(value2))) \
+    noexcept(noexcept(value1.swap(value2))) \
 { value1.swap(value2); }
 #define Q_DECLARE_SHARED(TYPE) Q_DECLARE_SHARED_IMPL(TYPE, Q_MOVABLE_TYPE)
 #define Q_DECLARE_SHARED_NOT_MOVABLE_UNTIL_QT6(TYPE) \
author	Tobias Hunger <tobias.hunger@qt.io>	2019-04-16 16:32:08 +0200
committer	Tobias Hunger <tobias.hunger@qt.io>	2019-04-16 16:32:08 +0200
commit	6630937e63ae5797487b86743a7733c8ae5cc42c (patch)
tree	3d53dacf6430f9099e1fb20835881205de674961 /src/corelib/global
parent	37ed6dae00640f9cc980ffda05347c12a7eb5d7e (diff)
parent	c7af193d2e49e9f10b86262e63d8d13abf72b5cf (diff)