| //===-- Unittests for coshf -----------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "src/__support/CPP/array.h" |
| #include "src/__support/FPUtil/FPBits.h" |
| #include "src/math/coshf.h" |
| #include "utils/MPFRWrapper/MPFRUtils.h" |
| #include "utils/UnitTest/FPMatcher.h" |
| #include "utils/UnitTest/Test.h" |
| #include <math.h> |
| |
| #include <errno.h> |
| #include <stdint.h> |
| |
| using FPBits = __llvm_libc::fputil::FPBits<float>; |
| |
| namespace mpfr = __llvm_libc::testing::mpfr; |
| |
| DECLARE_SPECIAL_CONSTANTS(float) |
| |
| TEST(LlvmLibcCoshfTest, SpecialNumbers) { |
| errno = 0; |
| |
| EXPECT_FP_EQ(aNaN, __llvm_libc::coshf(aNaN)); |
| EXPECT_MATH_ERRNO(0); |
| |
| EXPECT_FP_EQ(inf, __llvm_libc::coshf(inf)); |
| EXPECT_MATH_ERRNO(0); |
| |
| EXPECT_FP_EQ(inf, __llvm_libc::coshf(neg_inf)); |
| EXPECT_MATH_ERRNO(0); |
| |
| EXPECT_FP_EQ(1.0f, __llvm_libc::coshf(0.0f)); |
| EXPECT_MATH_ERRNO(0); |
| |
| EXPECT_FP_EQ(1.0f, __llvm_libc::coshf(-0.0f)); |
| EXPECT_MATH_ERRNO(0); |
| } |
| |
| TEST(LlvmLibcCoshfTest, Overflow) { |
| errno = 0; |
| EXPECT_FP_EQ(inf, __llvm_libc::coshf(float(FPBits(0x7f7fffffU)))); |
| EXPECT_MATH_ERRNO(ERANGE); |
| |
| EXPECT_FP_EQ(inf, __llvm_libc::coshf(float(FPBits(0x42cffff8U)))); |
| EXPECT_MATH_ERRNO(ERANGE); |
| |
| EXPECT_FP_EQ(inf, __llvm_libc::coshf(float(FPBits(0x42d00008U)))); |
| EXPECT_MATH_ERRNO(ERANGE); |
| } |
| |
| TEST(LlvmLibcCoshfTest, InFloatRange) { |
| constexpr uint32_t COUNT = 1000000; |
| constexpr uint32_t STEP = UINT32_MAX / COUNT; |
| for (uint32_t i = 0, v = 0; i <= COUNT; ++i, v += STEP) { |
| float x = float(FPBits(v)); |
| if (isnan(x) || isinf(x)) |
| continue; |
| ASSERT_MPFR_MATCH(mpfr::Operation::Cosh, x, __llvm_libc::coshf(x), 0.5); |
| } |
| } |
| |
| TEST(LlvmLibcCoshfTest, SmallValues) { |
| float x = float(FPBits(0x17800000U)); |
| float result = __llvm_libc::coshf(x); |
| EXPECT_MPFR_MATCH(mpfr::Operation::Cosh, x, result, 0.5); |
| EXPECT_FP_EQ(1.0f, result); |
| |
| x = float(FPBits(0x0040000U)); |
| result = __llvm_libc::coshf(x); |
| EXPECT_MPFR_MATCH(mpfr::Operation::Cosh, x, result, 0.5); |
| EXPECT_FP_EQ(1.0f, result); |
| } |