1//===-- Utility class to test the signbit macro [f|l] -----------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#ifndef LLVM_LIBC_TEST_INCLUDE_MATH_SIGNBIT_H
10#define LLVM_LIBC_TEST_INCLUDE_MATH_SIGNBIT_H
11
12#include "test/UnitTest/FPMatcher.h"
13#include "test/UnitTest/Test.h"
14
15#include "include/llvm-libc-macros/math-function-macros.h"
16
17template <typename T> class SignbitTest : public LIBC_NAMESPACE::testing::Test {
18
19 DECLARE_SPECIAL_CONSTANTS(T)
20
21public:
22 typedef int (*SignbitFunc)(T);
23
24 void testSpecialNumbers(SignbitFunc func) {
25 EXPECT_EQ(func(1), 0);
26 EXPECT_NE(func(-1), 0);
27 }
28};
29
30#define LIST_SIGNBIT_TESTS(T, func) \
31 using LlvmLibcSignbitTest = SignbitTest<T>; \
32 TEST_F(LlvmLibcSignbitTest, SpecialNumbers) { \
33 auto signbit_func = [](T x) { return func(x); }; \
34 testSpecialNumbers(signbit_func); \
35 }
36
37#endif // LLVM_LIBC_TEST_INCLUDE_MATH_SIGNBIT_H
38

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source code of libc/test/include/SignbitTest.h