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//===-- Utility class to test ceil[f|l] -------------------------*- C++ -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIBC_TEST_SRC_MATH_CEILTEST_H
#define LLVM_LIBC_TEST_SRC_MATH_CEILTEST_H
#include "src/__support/CPP/algorithm.h"
#include "test/UnitTest/FEnvSafeTest.h"
#include "test/UnitTest/FPMatcher.h"
#include "test/UnitTest/Test.h"
#include "utils/MPFRWrapper/MPFRUtils.h"
#include "hdr/math_macros.h"
namespace mpfr = LIBC_NAMESPACE::testing::mpfr;
template <typename T>
class CeilTest : public LIBC_NAMESPACE::testing::FEnvSafeTest {
DECLARE_SPECIAL_CONSTANTS(T)
public:
typedef T (*CeilFunc)(T);
void testSpecialNumbers(CeilFunc func) {
EXPECT_FP_EQ(zero, func(zero));
EXPECT_FP_EQ(neg_zero, func(neg_zero));
EXPECT_FP_EQ(inf, func(inf));
EXPECT_FP_EQ(neg_inf, func(neg_inf));
EXPECT_FP_EQ(aNaN, func(aNaN));
}
void testRoundedNumbers(CeilFunc func) {
EXPECT_FP_EQ(T(1.0), func(T(1.0)));
EXPECT_FP_EQ(T(-1.0), func(T(-1.0)));
EXPECT_FP_EQ(T(10.0), func(T(10.0)));
EXPECT_FP_EQ(T(-10.0), func(T(-10.0)));
EXPECT_FP_EQ(T(1234.0), func(T(1234.0)));
EXPECT_FP_EQ(T(-1234.0), func(T(-1234.0)));
}
void testFractions(CeilFunc func) {
EXPECT_FP_EQ(T(1.0), func(T(0.5)));
EXPECT_FP_EQ(T(-0.0), func(T(-0.5)));
EXPECT_FP_EQ(T(1.0), func(T(0.115)));
EXPECT_FP_EQ(T(-0.0), func(T(-0.115)));
EXPECT_FP_EQ(T(1.0), func(T(0.715)));
EXPECT_FP_EQ(T(-0.0), func(T(-0.715)));
EXPECT_FP_EQ(T(2.0), func(T(1.3)));
EXPECT_FP_EQ(T(-1.0), func(T(-1.3)));
EXPECT_FP_EQ(T(2.0), func(T(1.5)));
EXPECT_FP_EQ(T(-1.0), func(T(-1.5)));
EXPECT_FP_EQ(T(2.0), func(T(1.75)));
EXPECT_FP_EQ(T(-1.0), func(T(-1.75)));
EXPECT_FP_EQ(T(11.0), func(T(10.32)));
EXPECT_FP_EQ(T(-10.0), func(T(-10.32)));
EXPECT_FP_EQ(T(11.0), func(T(10.65)));
EXPECT_FP_EQ(T(-10.0), func(T(-10.65)));
EXPECT_FP_EQ(T(124.0), func(T(123.38)));
EXPECT_FP_EQ(T(-123.0), func(T(-123.38)));
EXPECT_FP_EQ(T(124.0), func(T(123.96)));
EXPECT_FP_EQ(T(-123.0), func(T(-123.96)));
}
void testRange(CeilFunc func) {
constexpr int COUNT = 100'000;
constexpr StorageType STEP = LIBC_NAMESPACE::cpp::max(
static_cast<StorageType>(STORAGE_MAX / COUNT), StorageType(1));
StorageType v = 0;
for (int i = 0; i <= COUNT; ++i, v += STEP) {
FPBits xbits(v);
T x = xbits.get_val();
if (xbits.is_inf_or_nan())
continue;
ASSERT_MPFR_MATCH(mpfr::Operation::Ceil, x, func(x), 0.0);
}
}
};
#define LIST_CEIL_TESTS(T, func) \
using LlvmLibcCeilTest = CeilTest<T>; \
TEST_F(LlvmLibcCeilTest, SpecialNumbers) { testSpecialNumbers(&func); } \
TEST_F(LlvmLibcCeilTest, RoundedNubmers) { testRoundedNumbers(&func); } \
TEST_F(LlvmLibcCeilTest, Fractions) { testFractions(&func); } \
TEST_F(LlvmLibcCeilTest, Range) { testRange(&func); }
#endif // LLVM_LIBC_TEST_SRC_MATH_CEILTEST_H
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