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authorGiuseppe D'Angelo <giuseppe.dangelo@kdab.com>2021-05-17 12:51:26 +0200
committerGiuseppe D'Angelo <giuseppe.dangelo@kdab.com>2021-05-18 02:09:11 +0200
commit9a94c4a415179377197f02580ea8fbcb0c5ce517 (patch)
treeba9cb9bf07668dccd922d9474b008714240d9892 /tests/auto/corelib/global
parent8b8ff64be273d9e74ac64d7efd1d5f6b2c70d362 (diff)
Long live qToUnderlying
"Cherry-pick" of C++2b's std::to_underlying. [ChangeLog][QtCore][QtGlobal] The qToUnderlying function has been added, to convert an value of enumeration type to its underlying value. Change-Id: Ia46bd8e4496e55174171ac2f0799eacbcca02cf9 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Diffstat (limited to 'tests/auto/corelib/global')
-rw-r--r--tests/auto/corelib/global/qglobal/tst_qglobal.cpp20
1 files changed, 20 insertions, 0 deletions
diff --git a/tests/auto/corelib/global/qglobal/tst_qglobal.cpp b/tests/auto/corelib/global/qglobal/tst_qglobal.cpp
index 5547f832ff..3d8759fba5 100644
--- a/tests/auto/corelib/global/qglobal/tst_qglobal.cpp
+++ b/tests/auto/corelib/global/qglobal/tst_qglobal.cpp
@@ -60,6 +60,7 @@ private slots:
void qRoundDoubles_data();
void qRoundDoubles();
void PRImacros();
+ void testqToUnderlying();
};
extern "C" { // functions in qglobal.c
@@ -698,5 +699,24 @@ void tst_QGlobal::PRImacros()
}
}
+void tst_QGlobal::testqToUnderlying()
+{
+ enum class E {
+ E1 = 123,
+ E2 = 456,
+ };
+ static_assert(std::is_same_v<decltype(qToUnderlying(E::E1)), int>);
+ QCOMPARE(qToUnderlying(E::E1), 123);
+ QCOMPARE(qToUnderlying(E::E2), 456);
+
+ enum EE : unsigned long {
+ EE1 = 123,
+ EE2 = 456,
+ };
+ static_assert(std::is_same_v<decltype(qToUnderlying(EE1)), unsigned long>);
+ QCOMPARE(qToUnderlying(EE1), 123UL);
+ QCOMPARE(qToUnderlying(EE2), 456UL);
+}
+
QTEST_APPLESS_MAIN(tst_QGlobal)
#include "tst_qglobal.moc"