1 //===-- Utility class to test roundeven[f|l] --------------------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #ifndef LLVM_LIBC_TEST_SRC_MATH_SMOKE_ROUNDEVENTEST_H 10 #define LLVM_LIBC_TEST_SRC_MATH_SMOKE_ROUNDEVENTEST_H 11 12 #include "test/UnitTest/FEnvSafeTest.h" 13 #include "test/UnitTest/FPMatcher.h" 14 #include "test/UnitTest/Test.h" 15 16 #include "hdr/math_macros.h" 17 18 template <typename T> 19 class RoundEvenTest : public LIBC_NAMESPACE::testing::FEnvSafeTest { 20 21 DECLARE_SPECIAL_CONSTANTS(T) 22 23 public: 24 typedef T (*RoundEvenFunc)(T); 25 testSpecialNumbers(RoundEvenFunc func)26 void testSpecialNumbers(RoundEvenFunc func) { 27 EXPECT_FP_EQ(zero, func(zero)); 28 EXPECT_FP_EQ(neg_zero, func(neg_zero)); 29 30 EXPECT_FP_EQ(inf, func(inf)); 31 EXPECT_FP_EQ(neg_inf, func(neg_inf)); 32 33 EXPECT_FP_EQ(aNaN, func(aNaN)); 34 } 35 testRoundedNumbers(RoundEvenFunc func)36 void testRoundedNumbers(RoundEvenFunc func) { 37 EXPECT_FP_EQ(T(1.0), func(T(1.0))); 38 EXPECT_FP_EQ(T(-1.0), func(T(-1.0))); 39 EXPECT_FP_EQ(T(10.0), func(T(10.0))); 40 EXPECT_FP_EQ(T(-10.0), func(T(-10.0))); 41 EXPECT_FP_EQ(T(1234.0), func(T(1234.0))); 42 EXPECT_FP_EQ(T(-1234.0), func(T(-1234.0))); 43 } 44 testFractions(RoundEvenFunc func)45 void testFractions(RoundEvenFunc func) { 46 EXPECT_FP_EQ(T(0.0), func(T(0.5))); 47 EXPECT_FP_EQ(T(-0.0), func(T(-0.5))); 48 EXPECT_FP_EQ(T(0.0), func(T(0.115))); 49 EXPECT_FP_EQ(T(-0.0), func(T(-0.115))); 50 EXPECT_FP_EQ(T(1.0), func(T(0.715))); 51 EXPECT_FP_EQ(T(-1.0), func(T(-0.715))); 52 EXPECT_FP_EQ(T(2.0), func(T(1.5))); 53 EXPECT_FP_EQ(T(-2.0), func(T(-1.5))); 54 EXPECT_FP_EQ(T(2.0), func(T(1.75))); 55 EXPECT_FP_EQ(T(-2.0), func(T(-1.75))); 56 EXPECT_FP_EQ(T(10.0), func(T(10.50))); 57 EXPECT_FP_EQ(T(-10.0), func(T(-10.50))); 58 EXPECT_FP_EQ(T(11.0), func(T(10.65))); 59 EXPECT_FP_EQ(T(-11.0), func(T(-10.65))); 60 EXPECT_FP_EQ(T(124.0), func(T(124.50))); 61 EXPECT_FP_EQ(T(-124.0), func(T(-124.50))); 62 EXPECT_FP_EQ(T(126.0), func(T(125.50))); 63 EXPECT_FP_EQ(T(-126.0), func(T(-125.50))); 64 } 65 }; 66 67 #define LIST_ROUNDEVEN_TESTS(T, func) \ 68 using LlvmLibcRoundEvenTest = RoundEvenTest<T>; \ 69 TEST_F(LlvmLibcRoundEvenTest, SpecialNumbers) { testSpecialNumbers(&func); } \ 70 TEST_F(LlvmLibcRoundEvenTest, RoundedNubmers) { testRoundedNumbers(&func); } \ 71 TEST_F(LlvmLibcRoundEvenTest, Fractions) { testFractions(&func); } 72 73 #endif // LLVM_LIBC_TEST_SRC_MATH_SMOKE_ROUNDEVENTEST_H 74