1//===-- Utility class to test the fpclassify macro -------------*- 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_FPCLASSIFY_H
10#define LLVM_LIBC_TEST_INCLUDE_MATH_FPCLASSIFY_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>
18class FpClassifyTest : public LIBC_NAMESPACE::testing::Test {
19 DECLARE_SPECIAL_CONSTANTS(T)
20
21public:
22 typedef int (*FpClassifyFunc)(T);
23
24 void testSpecialNumbers(FpClassifyFunc func) {
25 EXPECT_EQ(func(aNaN), FP_NAN);
26 EXPECT_EQ(func(neg_aNaN), FP_NAN);
27 EXPECT_EQ(func(sNaN), FP_NAN);
28 EXPECT_EQ(func(neg_sNaN), FP_NAN);
29 EXPECT_EQ(func(inf), FP_INFINITE);
30 EXPECT_EQ(func(neg_inf), FP_INFINITE);
31 EXPECT_EQ(func(min_normal), FP_NORMAL);
32 EXPECT_EQ(func(max_normal), FP_NORMAL);
33 EXPECT_EQ(func(neg_max_normal), FP_NORMAL);
34 EXPECT_EQ(func(min_denormal), FP_SUBNORMAL);
35 EXPECT_EQ(func(neg_min_denormal), FP_SUBNORMAL);
36 EXPECT_EQ(func(max_denormal), FP_SUBNORMAL);
37 EXPECT_EQ(func(zero), FP_ZERO);
38 EXPECT_EQ(func(neg_zero), FP_ZERO);
39 }
40};
41
42#define LIST_FPCLASSIFY_TESTS(T, func) \
43 using LlvmLibcFpClassifyTest = FpClassifyTest<T>; \
44 TEST_F(LlvmLibcFpClassifyTest, SpecialNumbers) { \
45 auto fpclassify_func = [](T x) { return func(x); }; \
46 testSpecialNumbers(fpclassify_func); \
47 }
48
49#endif // LLVM_LIBC_TEST_INCLUDE_MATH_FPCLASSIFY_H
50

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