From 3e8d356b8103e1e3ddeb9b44d19f3a51af873261 Mon Sep 17 00:00:00 2001 From: Michael Gottesman Date: Wed, 29 May 2013 23:58:29 +0000 Subject: Add a unittest for APFloat::getSmallest. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182894 91177308-0d34-0410-b5e6-96231b3b80d8 --- unittests/ADT/APFloatTest.cpp | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'unittests') diff --git a/unittests/ADT/APFloatTest.cpp b/unittests/ADT/APFloatTest.cpp index 099f6db7cb..4b51e85d63 100644 --- a/unittests/ADT/APFloatTest.cpp +++ b/unittests/ADT/APFloatTest.cpp @@ -794,6 +794,32 @@ TEST(APFloatTest, getLargest) { EXPECT_EQ(1.7976931348623158e+308, APFloat::getLargest(APFloat::IEEEdouble).convertToDouble()); } +TEST(APFloatTest, getSmallest) { + APFloat test = APFloat::getSmallest(APFloat::IEEEsingle, false); + APFloat expected = APFloat(APFloat::IEEEsingle, "0x0.000002p-126"); + EXPECT_TRUE(!test.isNegative()); + EXPECT_TRUE(test.isNormal()); + EXPECT_TRUE(test.bitwiseIsEqual(expected)); + + test = APFloat::getSmallest(APFloat::IEEEsingle, true); + expected = APFloat(APFloat::IEEEsingle, "-0x0.000002p-126"); + EXPECT_TRUE(test.isNegative()); + EXPECT_TRUE(test.isNormal()); + EXPECT_TRUE(test.bitwiseIsEqual(expected)); + + test = APFloat::getSmallest(APFloat::IEEEquad, false); + expected = APFloat(APFloat::IEEEquad, "0x0.0000000000000000000000000001p-16382"); + EXPECT_TRUE(!test.isNegative()); + EXPECT_TRUE(test.isNormal()); + EXPECT_TRUE(test.bitwiseIsEqual(expected)); + + test = APFloat::getSmallest(APFloat::IEEEquad, true); + expected = APFloat(APFloat::IEEEquad, "-0x0.0000000000000000000000000001p-16382"); + EXPECT_TRUE(test.isNegative()); + EXPECT_TRUE(test.isNormal()); + EXPECT_TRUE(test.bitwiseIsEqual(expected)); +} + TEST(APFloatTest, convert) { bool losesInfo; APFloat test(APFloat::IEEEdouble, "1.0"); -- cgit v1.2.3