diff options
Diffstat (limited to 'tests/auto/corelib/tools/qlocale/tst_qlocale.cpp')
-rw-r--r-- | tests/auto/corelib/tools/qlocale/tst_qlocale.cpp | 43 |
1 files changed, 28 insertions, 15 deletions
diff --git a/tests/auto/corelib/tools/qlocale/tst_qlocale.cpp b/tests/auto/corelib/tools/qlocale/tst_qlocale.cpp index 9bb0c6811d..0b41af3371 100644 --- a/tests/auto/corelib/tools/qlocale/tst_qlocale.cpp +++ b/tests/auto/corelib/tools/qlocale/tst_qlocale.cpp @@ -952,29 +952,42 @@ void tst_QLocale::stringToDouble() void tst_QLocale::stringToFloat_data() { + using Bounds = std::numeric_limits<float>; toReal_data(); - if (std::numeric_limits<float>::has_infinity) { - double huge = std::numeric_limits<float>::infinity(); - QTest::newRow("C inf") << QString("C") << QString("inf") << true << huge; - QTest::newRow("C +inf") << QString("C") << QString("+inf") << true << +huge; - QTest::newRow("C -inf") << QString("C") << QString("-inf") << true << -huge; + const QString C(QStringLiteral("C")); + if (Bounds::has_infinity) { + double huge = Bounds::infinity(); + QTest::newRow("C inf") << C << QString("inf") << true << huge; + QTest::newRow("C +inf") << C << QString("+inf") << true << +huge; + QTest::newRow("C -inf") << C << QString("-inf") << true << -huge; // Overflow float, but not double: - QTest::newRow("C big") << QString("C") << QString("3.5e38") << false << huge; - QTest::newRow("C -big") << QString("C") << QString("-3.5e38") << false << -huge; + QTest::newRow("C big") << C << QString("3.5e38") << false << huge; + QTest::newRow("C -big") << C << QString("-3.5e38") << false << -huge; // Overflow double, too: - QTest::newRow("C huge") << QString("C") << QString("2e308") << false << huge; - QTest::newRow("C -huge") << QString("C") << QString("-2e308") << false << -huge; + QTest::newRow("C huge") << C << QString("2e308") << false << huge; + QTest::newRow("C -huge") << C << QString("-2e308") << false << -huge; } - if (std::numeric_limits<float>::has_quiet_NaN) - QTest::newRow("C qnan") << QString("C") << QString("NaN") << true << double(std::numeric_limits<float>::quiet_NaN()); + if (Bounds::has_quiet_NaN) + QTest::newRow("C qnan") << C << QString("NaN") << true << double(Bounds::quiet_NaN()); + + // Minimal float: shouldn't underflow + QTest::newRow("C float min") + << C << QLocale::c().toString(Bounds::denorm_min()) << true << double(Bounds::denorm_min()); + QTest::newRow("C float -min") + << C << QLocale::c().toString(-Bounds::denorm_min()) << true << -double(Bounds::denorm_min()); // Underflow float, but not double: - QTest::newRow("C small") << QString("C") << QString("1e-45") << false << 0.; - QTest::newRow("C -small") << QString("C") << QString("-1e-45") << false << 0.; + QTest::newRow("C small") << C << QString("7e-46") << false << 0.; + QTest::newRow("C -small") << C << QString("-7e-46") << false << 0.; + using Double = std::numeric_limits<double>; + QTest::newRow("C double min") + << C << QLocale::c().toString(Double::denorm_min()) << false << 0.0; + QTest::newRow("C double -min") + << C << QLocale::c().toString(-Double::denorm_min()) << false << 0.0; // Underflow double, too: - QTest::newRow("C tiny") << QString("C") << QString("2e-324") << false << 0.; - QTest::newRow("C -tiny") << QString("C") << QString("-2e-324") << false << 0.; + QTest::newRow("C tiny") << C << QString("2e-324") << false << 0.; + QTest::newRow("C -tiny") << C << QString("-2e-324") << false << 0.; } void tst_QLocale::stringToFloat() |