diff options
| author | Edward Welbourne <edward.welbourne@qt.io> | 2019-03-13 18:49:04 +0100 |
|---|---|---|
| committer | Edward Welbourne <edward.welbourne@qt.io> | 2019-03-19 17:52:30 +0000 |
| commit | 84aea6c091d020a37c2b452a6f56ca27b3b2c7cb (patch) | |
| tree | 50f321ea52344cfd3831856aabf44089b4962094 /tests/auto/corelib/global/qnumeric/tst_qnumeric.cpp | |
| parent | 368eb2ecec7cc54ea987de00df7caa52a0d4503a (diff) | |
Add qFpClassify() to mirror std::fpclassify()
The rules of std don't permit us to add an overload for
fpclassify(qfloat16), so we need our own equivalent that we *can*
overload. Deploy it in the few places we use fpclassify().
Extended qnumeric's testing to cover qFpClassify().
Change-Id: Ie5a0a5cc24599d1571404c573d33c682b0d305a5
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
Diffstat (limited to 'tests/auto/corelib/global/qnumeric/tst_qnumeric.cpp')
| -rw-r--r-- | tests/auto/corelib/global/qnumeric/tst_qnumeric.cpp | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/tests/auto/corelib/global/qnumeric/tst_qnumeric.cpp b/tests/auto/corelib/global/qnumeric/tst_qnumeric.cpp index f37dcbbbba..e567e465f7 100644 --- a/tests/auto/corelib/global/qnumeric/tst_qnumeric.cpp +++ b/tests/auto/corelib/global/qnumeric/tst_qnumeric.cpp @@ -1,6 +1,6 @@ /**************************************************************************** ** -** Copyright (C) 2016 The Qt Company Ltd. +** Copyright (C) 2019 The Qt Company Ltd. ** Copyright (C) 2016 Intel Corporation. ** Contact: https://www.qt.io/licensing/ ** @@ -43,6 +43,7 @@ private slots: void fuzzyCompare_data(); void fuzzyCompare(); void qNanInf(); + void classifyfp(); void floatDistance_data(); void floatDistance(); void floatDistance_double_data(); @@ -123,6 +124,7 @@ void tst_QNumeric::qNanInf() QVERIFY(qIsNaN(-nan)); QVERIFY(!(nan == nan)); QVERIFY(qIsNaN(0.0 * nan)); + QCOMPARE(qFpClassify(nan), FP_NAN); QCOMPARE(nan, nan); QCOMPARE(nan, -nan); QCOMPARE(nan, qQNaN()); @@ -143,6 +145,34 @@ void tst_QNumeric::qNanInf() QVERIFY(qIsNaN(0.0 * inf)); } +void tst_QNumeric::classifyfp() +{ + QCOMPARE(qFpClassify(qQNaN()), FP_NAN); + + QCOMPARE(qFpClassify(qInf()), FP_INFINITE); + QCOMPARE(qFpClassify(-qInf()), FP_INFINITE); + QCOMPARE(qFpClassify(DBL_MAX * 2.0), FP_INFINITE); + QCOMPARE(qFpClassify(FLT_MAX * 2.f), FP_INFINITE); + QCOMPARE(qFpClassify(DBL_MAX * -2.0), FP_INFINITE); + QCOMPARE(qFpClassify(FLT_MAX * -2.f), FP_INFINITE); + + QCOMPARE(qFpClassify(1.0), FP_NORMAL); + QCOMPARE(qFpClassify(DBL_MAX), FP_NORMAL); + QCOMPARE(qFpClassify(-DBL_MAX), FP_NORMAL); + QCOMPARE(qFpClassify(DBL_MIN), FP_NORMAL); + QCOMPARE(qFpClassify(-DBL_MIN), FP_NORMAL); + QCOMPARE(qFpClassify(DBL_MIN / 2.0), FP_SUBNORMAL); + QCOMPARE(qFpClassify(DBL_MIN / -2.0), FP_SUBNORMAL); + + QCOMPARE(qFpClassify(1.f), FP_NORMAL); + QCOMPARE(qFpClassify(FLT_MAX), FP_NORMAL); + QCOMPARE(qFpClassify(-FLT_MAX), FP_NORMAL); + QCOMPARE(qFpClassify(FLT_MIN), FP_NORMAL); + QCOMPARE(qFpClassify(-FLT_MIN), FP_NORMAL); + QCOMPARE(qFpClassify(FLT_MIN / 2.f), FP_SUBNORMAL); + QCOMPARE(qFpClassify(FLT_MIN / -2.f), FP_SUBNORMAL); +} + void tst_QNumeric::floatDistance_data() { QTest::addColumn<float>("val1"); |