25226f3e4a
Apply the formatting rules that were applied to the libc/src directory to the libc/test directory, as well as the files in libc/utils that are included by the tests. This does not include automated enforcement. Reviewed By: sivachandra, lntue Differential Revision: https://reviews.llvm.org/D116127
56 lines
1.7 KiB
C++
56 lines
1.7 KiB
C++
//===-- Utility class to test copysign[f|l] ---------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "utils/MPFRWrapper/MPFRUtils.h"
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#include "utils/UnitTest/FPMatcher.h"
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#include "utils/UnitTest/Test.h"
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#include <math.h>
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namespace mpfr = __llvm_libc::testing::mpfr;
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template <typename T> class CopySignTest : public __llvm_libc::testing::Test {
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DECLARE_SPECIAL_CONSTANTS(T)
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public:
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typedef T (*CopySignFunc)(T, T);
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void testSpecialNumbers(CopySignFunc func) {
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EXPECT_FP_EQ(aNaN, func(aNaN, -1.0));
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EXPECT_FP_EQ(aNaN, func(aNaN, 1.0));
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EXPECT_FP_EQ(neg_inf, func(inf, -1.0));
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EXPECT_FP_EQ(inf, func(neg_inf, 1.0));
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EXPECT_FP_EQ(neg_zero, func(zero, -1.0));
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EXPECT_FP_EQ(zero, func(neg_zero, 1.0));
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}
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void testRange(CopySignFunc func) {
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constexpr UIntType COUNT = 10000000;
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constexpr UIntType STEP = UIntType(-1) / COUNT;
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for (UIntType i = 0, v = 0; i <= COUNT; ++i, v += STEP) {
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T x = T(FPBits(v));
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if (isnan(x) || isinf(x))
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continue;
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double res1 = func(x, -x);
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ASSERT_FP_EQ(res1, -x);
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double res2 = func(x, x);
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ASSERT_FP_EQ(res2, x);
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}
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}
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};
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#define LIST_COPYSIGN_TESTS(T, func) \
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using LlvmLibcCopySignTest = CopySignTest<T>; \
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TEST_F(LlvmLibcCopySignTest, SpecialNumbers) { testSpecialNumbers(&func); } \
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TEST_F(LlvmLibcCopySignTest, Range) { testRange(&func); }
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