diff options
| author | Dimitry Andric <dim@FreeBSD.org> | 2012-04-14 13:54:10 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2012-04-14 13:54:10 +0000 |
| commit | 63faed5b8e4f2755f127fcb8aa440480c0649327 (patch) | |
| tree | 19c69a04768629f2d440944b71cbe90adae0b615 /unittests/ADT/APFloatTest.cpp | |
| parent | d4c8b5d2e851b0e8a063c6bf8543a4823a26c15a (diff) | |
Diffstat (limited to 'unittests/ADT/APFloatTest.cpp')
| -rw-r--r-- | unittests/ADT/APFloatTest.cpp | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/unittests/ADT/APFloatTest.cpp b/unittests/ADT/APFloatTest.cpp index b6e02e3a9a3e..cc207f764da2 100644 --- a/unittests/ADT/APFloatTest.cpp +++ b/unittests/ADT/APFloatTest.cpp @@ -653,4 +653,28 @@ TEST(APFloatTest, getLargest) { EXPECT_EQ(1.7976931348623158e+308, APFloat::getLargest(APFloat::IEEEdouble).convertToDouble()); } +TEST(APFloatTest, convert) { + bool losesInfo; + APFloat test(APFloat::IEEEdouble, "1.0"); + test.convert(APFloat::IEEEsingle, APFloat::rmNearestTiesToEven, &losesInfo); + EXPECT_EQ(1.0f, test.convertToFloat()); + EXPECT_FALSE(losesInfo); + + test = APFloat(APFloat::x87DoubleExtended, "0x1p-53"); + test.add(APFloat(APFloat::x87DoubleExtended, "1.0"), APFloat::rmNearestTiesToEven); + test.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven, &losesInfo); + EXPECT_EQ(1.0, test.convertToDouble()); + EXPECT_TRUE(losesInfo); + + test = APFloat(APFloat::IEEEquad, "0x1p-53"); + test.add(APFloat(APFloat::IEEEquad, "1.0"), APFloat::rmNearestTiesToEven); + test.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven, &losesInfo); + EXPECT_EQ(1.0, test.convertToDouble()); + EXPECT_TRUE(losesInfo); + + test = APFloat(APFloat::x87DoubleExtended, "0xf.fffffffp+28"); + test.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven, &losesInfo); + EXPECT_EQ(4294967295.0, test.convertToDouble()); + EXPECT_FALSE(losesInfo); +} } |