| //===-- Unittests for ceill -----------------------------------------------===// |
| // |
| // 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/ceill.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<long double>; |
| |
| namespace mpfr = __llvm_libc::testing::mpfr; |
| |
| DECLARE_SPECIAL_CONSTANTS(long double) |
| |
| TEST(LlvmLibcCeillTest, SpecialNumbers) { |
| EXPECT_FP_EQ(zero, __llvm_libc::ceill(zero)); |
| EXPECT_FP_EQ(negZero, __llvm_libc::ceill(negZero)); |
| |
| EXPECT_FP_EQ(inf, __llvm_libc::ceill(inf)); |
| EXPECT_FP_EQ(negInf, __llvm_libc::ceill(negInf)); |
| |
| EXPECT_FP_EQ(aNaN, __llvm_libc::ceill(aNaN)); |
| } |
| |
| TEST(LlvmLibcCeillTest, RoundedNumbers) { |
| EXPECT_FP_EQ(1.0l, __llvm_libc::ceill(1.0l)); |
| EXPECT_FP_EQ(-1.0l, __llvm_libc::ceill(-1.0l)); |
| EXPECT_FP_EQ(10.0l, __llvm_libc::ceill(10.0l)); |
| EXPECT_FP_EQ(-10.0l, __llvm_libc::ceill(-10.0l)); |
| EXPECT_FP_EQ(1234.0l, __llvm_libc::ceill(1234.0l)); |
| EXPECT_FP_EQ(-1234.0l, __llvm_libc::ceill(-1234.0l)); |
| } |
| |
| TEST(LlvmLibcCeillTest, Fractions) { |
| EXPECT_FP_EQ(1.0l, __llvm_libc::ceill(0.5l)); |
| EXPECT_FP_EQ(-0.0l, __llvm_libc::ceill(-0.5l)); |
| EXPECT_FP_EQ(1.0l, __llvm_libc::ceill(0.115l)); |
| EXPECT_FP_EQ(-0.0l, __llvm_libc::ceill(-0.115l)); |
| EXPECT_FP_EQ(1.0l, __llvm_libc::ceill(0.715l)); |
| EXPECT_FP_EQ(-0.0l, __llvm_libc::ceill(-0.715l)); |
| EXPECT_FP_EQ(2.0l, __llvm_libc::ceill(1.3l)); |
| EXPECT_FP_EQ(-1.0l, __llvm_libc::ceill(-1.3l)); |
| EXPECT_FP_EQ(2.0l, __llvm_libc::ceill(1.5l)); |
| EXPECT_FP_EQ(-1.0l, __llvm_libc::ceill(-1.5l)); |
| EXPECT_FP_EQ(2.0l, __llvm_libc::ceill(1.75l)); |
| EXPECT_FP_EQ(-1.0l, __llvm_libc::ceill(-1.75l)); |
| EXPECT_FP_EQ(11.0l, __llvm_libc::ceill(10.32l)); |
| EXPECT_FP_EQ(-10.0l, __llvm_libc::ceill(-10.32l)); |
| EXPECT_FP_EQ(11.0l, __llvm_libc::ceill(10.65l)); |
| EXPECT_FP_EQ(-10.0l, __llvm_libc::ceill(-10.65l)); |
| EXPECT_FP_EQ(1235.0l, __llvm_libc::ceill(1234.38l)); |
| EXPECT_FP_EQ(-1234.0l, __llvm_libc::ceill(-1234.38l)); |
| EXPECT_FP_EQ(1235.0l, __llvm_libc::ceill(1234.96l)); |
| EXPECT_FP_EQ(-1234.0l, __llvm_libc::ceill(-1234.96l)); |
| } |
| |
| TEST(LlvmLibcCeillTest, InLongDoubleRange) { |
| using UIntType = FPBits::UIntType; |
| constexpr UIntType count = 10000000; |
| constexpr UIntType step = UIntType(-1) / count; |
| for (UIntType i = 0, v = 0; i <= count; ++i, v += step) { |
| long double x = FPBits(v); |
| if (isnan(x) || isinf(x)) |
| continue; |
| |
| ASSERT_MPFR_MATCH(mpfr::Operation::Ceil, x, __llvm_libc::ceill(x), 0.0); |
| } |
| } |