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
109 lines
3.4 KiB
C++
109 lines
3.4 KiB
C++
//===-- Utility class to test floor[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 "src/__support/FPUtil/BasicOperations.h"
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#include "src/__support/FPUtil/NearestIntegerOperations.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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template <typename T> class ModfTest : public __llvm_libc::testing::Test {
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DECLARE_SPECIAL_CONSTANTS(T)
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public:
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typedef T (*ModfFunc)(T, T *);
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void testSpecialNumbers(ModfFunc func) {
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T integral;
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EXPECT_FP_EQ(zero, func(zero, &integral));
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EXPECT_FP_EQ(integral, zero);
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EXPECT_FP_EQ(neg_zero, func(neg_zero, &integral));
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EXPECT_FP_EQ(integral, neg_zero);
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EXPECT_FP_EQ(zero, func(inf, &integral));
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EXPECT_FP_EQ(inf, integral);
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EXPECT_FP_EQ(neg_zero, func(neg_inf, &integral));
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EXPECT_FP_EQ(neg_inf, integral);
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EXPECT_FP_EQ(aNaN, func(aNaN, &integral));
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}
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void testIntegers(ModfFunc func) {
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T integral;
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EXPECT_FP_EQ(T(0.0), func(T(1.0), &integral));
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EXPECT_FP_EQ(T(1.0), integral);
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EXPECT_FP_EQ(T(-0.0), func(T(-1.0), &integral));
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EXPECT_FP_EQ(T(-1.0), integral);
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EXPECT_FP_EQ(T(0.0), func(T(10.0), &integral));
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EXPECT_FP_EQ(T(10.0), integral);
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EXPECT_FP_EQ(T(-0.0), func(T(-10.0), &integral));
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EXPECT_FP_EQ(T(-10.0), integral);
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EXPECT_FP_EQ(T(0.0), func(T(12345.0), &integral));
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EXPECT_FP_EQ(T(12345.0), integral);
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EXPECT_FP_EQ(T(-0.0), func(T(-12345.0), &integral));
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EXPECT_FP_EQ(T(-12345.0), integral);
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}
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void testFractions(ModfFunc func) {
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T integral;
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EXPECT_FP_EQ(T(0.5), func(T(1.5), &integral));
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EXPECT_FP_EQ(integral, T(1.0));
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EXPECT_FP_EQ(T(-0.5), func(T(-1.5), &integral));
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EXPECT_FP_EQ(integral, T(-1.0));
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EXPECT_FP_EQ(T(0.75), func(T(10.75), &integral));
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EXPECT_FP_EQ(integral, T(10.0));
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EXPECT_FP_EQ(T(-0.75), func(T(-10.75), &integral));
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EXPECT_FP_EQ(integral, T(-10.0));
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EXPECT_FP_EQ(T(0.125), func(T(100.125), &integral));
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EXPECT_FP_EQ(integral, T(100.0));
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EXPECT_FP_EQ(T(-0.125), func(T(-100.125), &integral));
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EXPECT_FP_EQ(integral, T(-100.0));
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}
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void testRange(ModfFunc 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) || x == T(0.0))
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continue;
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T integral;
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T frac = func(x, &integral);
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ASSERT_TRUE(__llvm_libc::fputil::abs(frac) < 1.0l);
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ASSERT_TRUE(__llvm_libc::fputil::trunc(x) == integral);
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ASSERT_TRUE(integral + frac == x);
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}
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}
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};
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#define LIST_MODF_TESTS(T, func) \
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using LlvmLibcModfTest = ModfTest<T>; \
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TEST_F(LlvmLibcModfTest, SpecialNumbers) { testSpecialNumbers(&func); } \
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TEST_F(LlvmLibcModfTest, RoundedNubmers) { testIntegers(&func); } \
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TEST_F(LlvmLibcModfTest, Fractions) { testFractions(&func); } \
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TEST_F(LlvmLibcModfTest, Range) { testRange(&func); }
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