diff options
| author | Edward Welbourne <edward.welbourne@qt.io> | 2019-09-17 19:53:55 +0200 |
|---|---|---|
| committer | Edward Welbourne <edward.welbourne@qt.io> | 2019-11-06 11:36:49 +0100 |
| commit | 7bf4f81de81b6e800509867d5acad545c566dbac (patch) | |
| tree | 4528d7e30048a0a4da872d5c7528c7f3ea6b4dac /tests | |
| parent | b7858e9b4bdb2866f0c76ecaa8dd25bd9b618afc (diff) | |
Add qfloat16::copySign() since we can't overload std::copysign()
Change-Id: Idfaf841b3eb3538f076ae4f0de2d7d029e1588fe
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/auto/corelib/global/qfloat16/tst_qfloat16.cpp | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/tests/auto/corelib/global/qfloat16/tst_qfloat16.cpp b/tests/auto/corelib/global/qfloat16/tst_qfloat16.cpp index 94f0afa5ed..a661b0388e 100644 --- a/tests/auto/corelib/global/qfloat16/tst_qfloat16.cpp +++ b/tests/auto/corelib/global/qfloat16/tst_qfloat16.cpp @@ -430,6 +430,13 @@ void tst_qfloat16::finite() QVERIFY(!qIsInf(value)); QVERIFY(!qIsNaN(value)); QCOMPARE(qFpClassify(value), mode); + + // *NOT* using QCOMPARE() on finite qfloat16 values, since that uses fuzzy + // comparison, and we need exact here. + const qfloat16 zero(0), plus(+1), minus(-1); + const qfloat16 magnitude = (value < zero) ? -value : value; + QVERIFY(value.copySign(plus) == magnitude); + QVERIFY(value.copySign(minus) == -magnitude); } void tst_qfloat16::properties() @@ -534,7 +541,9 @@ void tst_qfloat16::limits() // See also: qNaN() and infinity() QVERIFY(Bounds::denorm_min() / rose == zero); if (overOptimized) QEXPECT_FAIL("", "Over-optimized on ARM", Continue); - QVERIFY(-Bounds::denorm_min() / rose == -zero); + const qfloat16 under = (-Bounds::denorm_min()) / rose; + QVERIFY(under == -zero); + QCOMPARE(qfloat16(1).copySign(under), qfloat16(-1)); } QTEST_APPLESS_MAIN(tst_qfloat16) |