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1//===-- Utility class to test fabs[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-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef LLVM_LIBC_TEST_SRC_MATH_FABSTEST_H10#define LLVM_LIBC_TEST_SRC_MATH_FABSTEST_H11 12#include "test/UnitTest/FEnvSafeTest.h"13#include "test/UnitTest/FPMatcher.h"14#include "test/UnitTest/Test.h"15#include "utils/MPFRWrapper/MPFRUtils.h"16 17#include "hdr/math_macros.h"18 19namespace mpfr = LIBC_NAMESPACE::testing::mpfr;20 21template <typename T>22class FAbsTest : public LIBC_NAMESPACE::testing::FEnvSafeTest {23 24 DECLARE_SPECIAL_CONSTANTS(T)25 26public:27 typedef T (*FabsFunc)(T);28 29 void testSpecialNumbers(FabsFunc func) {30 EXPECT_FP_EQ(aNaN, func(aNaN));31 32 EXPECT_FP_EQ(inf, func(inf));33 EXPECT_FP_EQ(inf, func(neg_inf));34 35 EXPECT_FP_EQ(zero, func(zero));36 EXPECT_FP_EQ(zero, func(neg_zero));37 }38 39 void testRange(FabsFunc func) {40 constexpr StorageType COUNT = 100'000;41 constexpr StorageType STEP = STORAGE_MAX / COUNT;42 for (StorageType i = 0, v = 0; i <= COUNT; ++i, v += STEP) {43 T x = FPBits(v).get_val();44 if (FPBits(v).is_nan() || FPBits(v).is_inf())45 continue;46 ASSERT_MPFR_MATCH(mpfr::Operation::Abs, x, func(x), 0.0);47 }48 }49};50 51#define LIST_FABS_TESTS(T, func) \52 using LlvmLibcFAbsTest = FAbsTest<T>; \53 TEST_F(LlvmLibcFAbsTest, SpecialNumbers) { testSpecialNumbers(&func); } \54 TEST_F(LlvmLibcFAbsTest, Range) { testRange(&func); }55 56#endif // LLVM_LIBC_TEST_SRC_MATH_FABSTEST_H57