From 1fc08f5e9ef733ef1ce6f363fecedc2260e78974 Mon Sep 17 00:00:00 2001 From: dim Date: Sat, 14 Apr 2012 13:54:10 +0000 Subject: Vendor import of llvm trunk r154661: http://llvm.org/svn/llvm-project/llvm/trunk@r154661 --- unittests/ADT/APFloatTest.cpp | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'unittests/ADT/APFloatTest.cpp') diff --git a/unittests/ADT/APFloatTest.cpp b/unittests/ADT/APFloatTest.cpp index b6e02e3..cc207f7 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); +} } -- cgit v1.1