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-rw-r--r--src/corelib/global/qflags.h11
1 files changed, 7 insertions, 4 deletions
diff --git a/src/corelib/global/qflags.h b/src/corelib/global/qflags.h
index b871c90c9d..feeb488acd 100644
--- a/src/corelib/global/qflags.h
+++ b/src/corelib/global/qflags.h
@@ -42,15 +42,14 @@
#ifndef QFLAGS_H
#define QFLAGS_H
-#include <QtCore/qtypeinfo.h>
-#include <QtCore/qtypetraits.h>
-
#ifdef Q_COMPILER_INITIALIZER_LISTS
#include <initializer_list>
#endif
QT_BEGIN_NAMESPACE
+class QDataStream;
+
class QFlag
{
int i;
@@ -94,8 +93,12 @@ class QFlags
Q_STATIC_ASSERT_X((sizeof(Enum) <= sizeof(int)),
"QFlags uses an int as storage, so an enum with underlying "
"long long will overflow.");
+ Q_STATIC_ASSERT_X((std::is_enum<Enum>::value), "QFlags is only usable on enumeration types.");
+
struct Private;
typedef int (Private::*Zero);
+ template <typename E> friend QDataStream &operator>>(QDataStream &, QFlags<E> &);
+ template <typename E> friend QDataStream &operator<<(QDataStream &, QFlags<E>);
public:
#if defined(Q_CC_MSVC) || defined(Q_QDOC)
// see above for MSVC
@@ -103,7 +106,7 @@ public:
typedef int Int;
#else
typedef typename std::conditional<
- QtPrivate::QIsUnsignedEnum<Enum>::value,
+ std::is_unsigned<typename std::underlying_type<Enum>::type>::value,
unsigned int,
signed int
>::type Int;