1 //===-- Utility class to test different flavors of nextdown -----*- 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_NEXTDOWNTEST_H 10 #define LLVM_LIBC_TEST_SRC_MATH_NEXTDOWNTEST_H 11 12 #include "test/UnitTest/FEnvSafeTest.h" 13 #include "test/UnitTest/FPMatcher.h" 14 #include "test/UnitTest/Test.h" 15 16 template <typename T> 17 class NextDownTestTemplate : public LIBC_NAMESPACE::testing::FEnvSafeTest { 18 19 DECLARE_SPECIAL_CONSTANTS(T) 20 21 public: 22 typedef T (*NextDownFunc)(T); 23 testNaN(NextDownFunc func)24 void testNaN(NextDownFunc func) { ASSERT_FP_EQ(func(aNaN), aNaN); } 25 testBoundaries(NextDownFunc func)26 void testBoundaries(NextDownFunc func) { 27 ASSERT_FP_EQ(zero, func(min_denormal)); 28 29 ASSERT_FP_EQ(neg_min_denormal, func(zero)); 30 ASSERT_FP_EQ(neg_min_denormal, func(neg_zero)); 31 32 ASSERT_FP_EQ(neg_max_normal, func(neg_max_normal)); 33 ASSERT_FP_EQ(neg_inf, func(neg_inf)); 34 35 ASSERT_FP_EQ(max_normal, func(inf)); 36 } 37 }; 38 39 #define LIST_NEXTDOWN_TESTS(T, func) \ 40 using LlvmLibcNextDownTest = NextDownTestTemplate<T>; \ 41 TEST_F(LlvmLibcNextDownTest, TestNaN) { testNaN(&func); } \ 42 TEST_F(LlvmLibcNextDownTest, TestBoundaries) { testBoundaries(&func); } 43 44 #endif // LLVM_LIBC_TEST_SRC_MATH_NEXTDOWNTEST_H 45