QtGlobal: add qssize_t
It replaces Posix' ssize_t in cross-platform code. Most importantly, it allows QStringView users to refer to QStringView::size_type by a shorter, less intimidating name. Change-Id: I2128fefd2ffdd258b0b55cd90802a23c6bc033f6 Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io> Reviewed-by: Edward Welbourne <edward.welbourne@qt.io> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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@ -773,6 +773,21 @@ Q_STATIC_ASSERT_X(QT_POINTER_SIZE == sizeof(void *), "QT_POINTER_SIZE defined in
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\sa quintptr, qint32, qint64
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*/
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/*!
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\typedef qssize_t
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\relates <QtGlobal>
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\since 5.10
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Integral type providing Posix' \c ssize_t for all platforms.
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This type is guaranteed to be the same size as a \c size_t on all
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platforms supported by Qt.
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Note that qssize_t is signed. Use \c size_t for unsigned values.
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\sa qptrdiff
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*/
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/*!
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\enum QtMsgType
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\relates <QtGlobal>
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@ -451,6 +451,7 @@ typedef QIntegerForSize<Q_PROCESSOR_WORDSIZE>::Unsigned qregisteruint;
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typedef QIntegerForSizeof<void*>::Unsigned quintptr;
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typedef QIntegerForSizeof<void*>::Signed qptrdiff;
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typedef qptrdiff qintptr;
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using qssize_t = QIntegerForSizeof<std::size_t>::Signed;
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/* moc compats (signals/slots) */
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#ifndef QT_MOC_COMPAT
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