| 1 | //===-- Utility class to test different flavors of nextdown -----*- C++ -*-===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #ifndef LLVM_LIBC_TEST_SRC_MATH_NEXTDOWNTEST_H |
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| 10 | #define LLVM_LIBC_TEST_SRC_MATH_NEXTDOWNTEST_H |
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| 11 | |
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| 12 | #include "test/UnitTest/FEnvSafeTest.h" |
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| 13 | #include "test/UnitTest/FPMatcher.h" |
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| 14 | #include "test/UnitTest/Test.h" |
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| 15 | |
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| 16 | template <typename T> |
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| 17 | class NextDownTestTemplate : public LIBC_NAMESPACE::testing::FEnvSafeTest { |
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| 18 | |
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| 19 | DECLARE_SPECIAL_CONSTANTS(T) |
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| 20 | |
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| 21 | public: |
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| 22 | typedef T (*NextDownFunc)(T); |
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| 23 | |
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| 24 | void testNaN(NextDownFunc func) { ASSERT_FP_EQ(func(aNaN), aNaN); } |
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| 25 | |
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| 26 | void testBoundaries(NextDownFunc func) { |
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| 27 | ASSERT_FP_EQ(zero, func(min_denormal)); |
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| 28 | |
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| 29 | ASSERT_FP_EQ(neg_min_denormal, func(zero)); |
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| 30 | ASSERT_FP_EQ(neg_min_denormal, func(neg_zero)); |
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| 31 | |
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| 32 | ASSERT_FP_EQ(neg_max_normal, func(neg_max_normal)); |
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| 33 | ASSERT_FP_EQ(neg_inf, func(neg_inf)); |
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| 34 | |
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| 35 | ASSERT_FP_EQ(max_normal, func(inf)); |
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| 36 | } |
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| 37 | }; |
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| 38 | |
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| 39 | #define LIST_NEXTDOWN_TESTS(T, func) \ |
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| 40 | using LlvmLibcNextDownTest = NextDownTestTemplate<T>; \ |
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| 41 | TEST_F(LlvmLibcNextDownTest, TestNaN) { testNaN(&func); } \ |
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| 42 | TEST_F(LlvmLibcNextDownTest, TestBoundaries) { testBoundaries(&func); } |
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| 43 | |
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| 44 | #endif // LLVM_LIBC_TEST_SRC_MATH_NEXTDOWNTEST_H |
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| 45 | |
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