| //===-- Unittests for floorf ----------------------------------------------===// |
| // |
| // 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/math/floorf.h" |
| #include "utils/FPUtil/FPBits.h" |
| #include "utils/FPUtil/TestHelpers.h" |
| #include "utils/MPFRWrapper/MPFRUtils.h" |
| #include "utils/UnitTest/Test.h" |
| #include <math.h> |
| |
| using FPBits = __llvm_libc::fputil::FPBits<float>; |
| |
| DECLARE_SPECIAL_CONSTANTS(float) |
| |
| namespace mpfr = __llvm_libc::testing::mpfr; |
| |
| TEST(LlvmLibcFloorfTest, SpecialNumbers) { |
| EXPECT_FP_EQ(zero, __llvm_libc::floorf(zero)); |
| EXPECT_FP_EQ(negZero, __llvm_libc::floorf(negZero)); |
| |
| EXPECT_FP_EQ(inf, __llvm_libc::floorf(inf)); |
| EXPECT_FP_EQ(negInf, __llvm_libc::floorf(negInf)); |
| |
| EXPECT_FP_EQ(aNaN, __llvm_libc::floorf(aNaN)); |
| } |
| |
| TEST(LlvmLibcFloorfTest, RoundedNumbers) { |
| EXPECT_FP_EQ(1.0f, __llvm_libc::floorf(1.0f)); |
| EXPECT_FP_EQ(-1.0f, __llvm_libc::floorf(-1.0f)); |
| EXPECT_FP_EQ(10.0f, __llvm_libc::floorf(10.0f)); |
| EXPECT_FP_EQ(-10.0f, __llvm_libc::floorf(-10.0f)); |
| EXPECT_FP_EQ(1234.0f, __llvm_libc::floorf(1234.0f)); |
| EXPECT_FP_EQ(-1234.0f, __llvm_libc::floorf(-1234.0f)); |
| } |
| |
| TEST(LlvmLibcFloorfTest, Fractions) { |
| EXPECT_FP_EQ(0.0f, __llvm_libc::floorf(0.5f)); |
| EXPECT_FP_EQ(-1.0f, __llvm_libc::floorf(-0.5f)); |
| EXPECT_FP_EQ(0.0f, __llvm_libc::floorf(0.115f)); |
| EXPECT_FP_EQ(-1.0f, __llvm_libc::floorf(-0.115f)); |
| EXPECT_FP_EQ(0.0f, __llvm_libc::floorf(0.715f)); |
| EXPECT_FP_EQ(-1.0f, __llvm_libc::floorf(-0.715f)); |
| EXPECT_FP_EQ(1.0f, __llvm_libc::floorf(1.3f)); |
| EXPECT_FP_EQ(-2.0f, __llvm_libc::floorf(-1.3f)); |
| EXPECT_FP_EQ(1.0f, __llvm_libc::floorf(1.5f)); |
| EXPECT_FP_EQ(-2.0f, __llvm_libc::floorf(-1.5f)); |
| EXPECT_FP_EQ(1.0f, __llvm_libc::floorf(1.75f)); |
| EXPECT_FP_EQ(-2.0f, __llvm_libc::floorf(-1.75f)); |
| EXPECT_FP_EQ(10.0f, __llvm_libc::floorf(10.32f)); |
| EXPECT_FP_EQ(-11.0f, __llvm_libc::floorf(-10.32f)); |
| EXPECT_FP_EQ(10.0f, __llvm_libc::floorf(10.65f)); |
| EXPECT_FP_EQ(-11.0f, __llvm_libc::floorf(-10.65f)); |
| EXPECT_FP_EQ(1234.0f, __llvm_libc::floorf(1234.38f)); |
| EXPECT_FP_EQ(-1235.0f, __llvm_libc::floorf(-1234.38f)); |
| EXPECT_FP_EQ(1234.0f, __llvm_libc::floorf(1234.96f)); |
| EXPECT_FP_EQ(-1235.0f, __llvm_libc::floorf(-1234.96f)); |
| } |
| |
| TEST(LlvmLibcFloorfTest, InFloatRange) { |
| using UIntType = FPBits::UIntType; |
| constexpr UIntType count = 1000000; |
| constexpr UIntType step = UIntType(-1) / count; |
| for (UIntType i = 0, v = 0; i <= count; ++i, v += step) { |
| float x = FPBits(v); |
| if (isnan(x) || isinf(x)) |
| continue; |
| |
| ASSERT_MPFR_MATCH(mpfr::Operation::Floor, x, __llvm_libc::floorf(x), 0.0); |
| } |
| } |