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-rw-r--r--src/corelib/global/qglobal.h8
-rw-r--r--src/corelib/tools/qstring.h11
2 files changed, 10 insertions, 9 deletions
diff --git a/src/corelib/global/qglobal.h b/src/corelib/global/qglobal.h
index 0e37493182..12220e10b5 100644
--- a/src/corelib/global/qglobal.h
+++ b/src/corelib/global/qglobal.h
@@ -716,9 +716,9 @@ Q_CORE_EXPORT void qt_assert(const char *assertion, const char *file, int line)
#if !defined(Q_ASSERT)
# if defined(QT_NO_DEBUG) && !defined(QT_FORCE_ASSERTS)
-# define Q_ASSERT(cond) do { } while ((false) && (cond))
+# define Q_ASSERT(cond) static_cast<void>(false && (cond))
# else
-# define Q_ASSERT(cond) ((!(cond)) ? qt_assert(#cond,__FILE__,__LINE__) : qt_noop())
+# define Q_ASSERT(cond) ((cond) ? static_cast<void>(0) : qt_assert(#cond, __FILE__, __LINE__))
# endif
#endif
@@ -733,9 +733,9 @@ Q_CORE_EXPORT void qt_assert_x(const char *where, const char *what, const char *
#if !defined(Q_ASSERT_X)
# if defined(QT_NO_DEBUG) && !defined(QT_FORCE_ASSERTS)
-# define Q_ASSERT_X(cond, where, what) do { } while ((false) && (cond))
+# define Q_ASSERT_X(cond, where, what) static_cast<void>(false && (cond))
# else
-# define Q_ASSERT_X(cond, where, what) ((!(cond)) ? qt_assert_x(where, what,__FILE__,__LINE__) : qt_noop())
+# define Q_ASSERT_X(cond, where, what) ((cond) ? static_cast<void>(0) : qt_assert_x(where, what, __FILE__, __LINE__))
# endif
#endif
diff --git a/src/corelib/tools/qstring.h b/src/corelib/tools/qstring.h
index 37f32c8c43..d4a4f23c93 100644
--- a/src/corelib/tools/qstring.h
+++ b/src/corelib/tools/qstring.h
@@ -100,7 +100,8 @@ public:
Q_DECL_CONSTEXPR bool isNull() const Q_DECL_NOTHROW { return !data(); }
Q_DECL_CONSTEXPR bool isEmpty() const Q_DECL_NOTHROW { return !size(); }
- Q_DECL_CONSTEXPR QLatin1Char at(int i) const { return QLatin1Char(m_data[i]); }
+ Q_DECL_CONSTEXPR QLatin1Char at(int i) const
+ { return Q_ASSERT(i >= 0), Q_ASSERT(i < size()), QLatin1Char(m_data[i]); }
Q_DECL_CONSTEXPR QLatin1Char operator[](int i) const { return at(i); }
using value_type = const char;
@@ -125,13 +126,13 @@ public:
const_reverse_iterator crend() const Q_DECL_NOTHROW { return const_reverse_iterator(begin()); }
Q_DECL_CONSTEXPR QLatin1String mid(int pos) const
- { return QLatin1String(m_data + pos, m_size - pos); }
+ { return Q_ASSERT(pos >= 0), Q_ASSERT(pos <= size()), QLatin1String(m_data + pos, m_size - pos); }
Q_DECL_CONSTEXPR QLatin1String mid(int pos, int n) const
- { return QLatin1String(m_data + pos, n); }
+ { return Q_ASSERT(pos >= 0), Q_ASSERT(n >= 0), Q_ASSERT(pos + n <= size()), QLatin1String(m_data + pos, n); }
Q_DECL_CONSTEXPR QLatin1String left(int n) const
- { return QLatin1String(m_data, n); }
+ { return Q_ASSERT(n >= 0), Q_ASSERT(n <= size()), QLatin1String(m_data, n); }
Q_DECL_CONSTEXPR QLatin1String right(int n) const
- { return QLatin1String(m_data + m_size - n, n); }
+ { return Q_ASSERT(n >= 0), Q_ASSERT(n <= size()), QLatin1String(m_data + m_size - n, n); }
inline bool operator==(const QString &s) const Q_DECL_NOTHROW;
inline bool operator!=(const QString &s) const Q_DECL_NOTHROW;