diff options
Diffstat (limited to 'src/corelib')
| -rw-r--r-- | src/corelib/global/qglobal.cpp | 5 | ||||
| -rw-r--r-- | src/corelib/global/qglobal.h | 3 |
2 files changed, 8 insertions, 0 deletions
diff --git a/src/corelib/global/qglobal.cpp b/src/corelib/global/qglobal.cpp index 150ae7cf49..bb944c4d8e 100644 --- a/src/corelib/global/qglobal.cpp +++ b/src/corelib/global/qglobal.cpp @@ -140,6 +140,11 @@ Q_STATIC_ASSERT_X(std::numeric_limits<float>::has_infinity && Q_STATIC_ASSERT_X(std::numeric_limits<float>::radix == 2, "Qt assumes binary IEEE 754 floating point"); +// not required by the definition of size_t, but we depend on this +Q_STATIC_ASSERT_X(sizeof(size_t) == sizeof(void *), "size_t and a pointer don't have the same size"); +Q_STATIC_ASSERT(sizeof(size_t) == sizeof(qssize_t)); // implied by the definition +Q_STATIC_ASSERT((std::is_same<qssize_t, qptrdiff>::value)); + /*! \class QFlag \inmodule QtCore diff --git a/src/corelib/global/qglobal.h b/src/corelib/global/qglobal.h index 14c17d1ce3..51dad31bba 100644 --- a/src/corelib/global/qglobal.h +++ b/src/corelib/global/qglobal.h @@ -436,6 +436,9 @@ namespace QtPrivate { sizeof(void *) == sizeof(quintptr) && sizeof(void *) == sizeof(qptrdiff) + + size_t and qssize_t are not guaranteed to be the same size as a pointer, but + they usually are. */ template <int> struct QIntegerForSize; template <> struct QIntegerForSize<1> { typedef quint8 Unsigned; typedef qint8 Signed; }; |