forked from OSchip/llvm-project
33 lines
1.1 KiB
C++
33 lines
1.1 KiB
C++
//===-- Unittests for cos -------------------------------------------------===//
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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 "src/math/cos.h"
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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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DECLARE_SPECIAL_CONSTANTS(double)
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TEST(LlvmLibccosTest, Range) {
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static constexpr double _2pi = 6.283185307179586;
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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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double x = double(FPBits(v));
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// TODO: Expand the range of testing after range reduction is implemented.
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if (isnan(x) || isinf(x) || x > _2pi || x < -_2pi)
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continue;
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ASSERT_MPFR_MATCH(mpfr::Operation::Cos, x, __llvm_libc::cos(x), 1.0);
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}
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}
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