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Add some tests for q(u)int128

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Check that QIntegerForSize<16> and std::numeric_limits<quint128> work
and that q(u)int128 are available in C mode, too.

Pick-to; 6.6.0
Change-Id: I44af8282399c78f6e74a8268af53bad64407ca34
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
(cherry picked from commit 32f66f7008ce8fff1a8cdc5219978d1a61d4684c)
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
This commit is contained in:
Marc Mutz 2023-09-12 23:38:34 +02:00 committed by Volker Hilsheimer
parent cd8667cb17
commit 297aa6d751
3 changed files with 25 additions and 0 deletions
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12
src/corelib/global/qtypes.cpp
View File

@ -399,5 +399,17 @@ static_assert(sizeof(qint8) == 1, "Internal error, qint8 is misdefined");
static_assert(sizeof(qint16)== 2, "Internal error, qint16 is misdefined");
static_assert(sizeof(qint32) == 4, "Internal error, qint32 is misdefined");
static_assert(sizeof(qint64) == 8, "Internal error, qint64 is misdefined");
#ifdef QT_SUPPORTS_INT128
static_assert(sizeof(qint128) == 16, "Internal error, qint128 is misdefined");
#endif
#ifdef QT_SUPPORTS_INT128
// check that numeric_limits works:
// This fails here for GCC 9, but succeeds on Clang and GCC >= 11
// so just suppress the check for older GCC:
# if !defined(Q_CC_GNU_ONLY) || Q_CC_GNU >= 1100
static_assert(std::numeric_limits<quint128>::max() == quint128(-1));
# endif
#endif
QT_END_NAMESPACE

7
tests/auto/corelib/global/qglobal/qglobal.c
View File

@ -3,6 +3,7 @@
#include <QtCore/qglobal.h>
#include <QtCore/qtversion.h>
#include <QtCore/qtypes.h>
#ifdef Q_COMPILER_THREAD_LOCAL
# include <threads.h>
@ -44,6 +45,12 @@ void tst_GlobalTypes()
qintptr qip;
quintptr qup;
Q_UNUSED(qs); Q_UNUSED(qp); Q_UNUSED(qip); Q_UNUSED(qup);
#ifdef QT_SUPPORTS_INT128
qint128 s128;
quint128 u128;
Q_UNUSED(s128); Q_UNUSED(u128);
#endif /* QT_SUPPORTS_INT128 */
}
/* Qt version */

6
tests/auto/corelib/global/qglobal/tst_qglobal.cpp
View File

@ -422,11 +422,17 @@ void tst_QGlobal::integerForSize()
static_assert(sizeof(QIntegerForSize<2>::Signed) == 2);
static_assert(sizeof(QIntegerForSize<4>::Signed) == 4);
static_assert(sizeof(QIntegerForSize<8>::Signed) == 8);
#ifdef QT_SUPPORTS_INT128
static_assert(sizeof(QIntegerForSize<16>::Signed) == 16);
#endif
static_assert(sizeof(QIntegerForSize<1>::Unsigned) == 1);
static_assert(sizeof(QIntegerForSize<2>::Unsigned) == 2);
static_assert(sizeof(QIntegerForSize<4>::Unsigned) == 4);
static_assert(sizeof(QIntegerForSize<8>::Unsigned) == 8);
#ifdef QT_SUPPORTS_INT128
static_assert(sizeof(QIntegerForSize<16>::Unsigned) == 16);
#endif
}
typedef QPair<const char *, const char *> stringpair;