1//===-- Utility class to test the issubnormal 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_ISSUBNORMAL_H
10#define LLVM_LIBC_TEST_INCLUDE_MATH_ISSUBNORMAL_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 IsSubnormalTest : public LIBC_NAMESPACE::testing::Test {
19 DECLARE_SPECIAL_CONSTANTS(T)
20
21public:
22 typedef bool (*IsSubnormalFunc)(T);
23
24 void testSpecialNumbers(IsSubnormalFunc func) {
25 EXPECT_FALSE(func(aNaN));
26 EXPECT_FALSE(func(neg_aNaN));
27 EXPECT_FALSE(func(sNaN));
28 EXPECT_FALSE(func(neg_sNaN));
29 EXPECT_FALSE(func(inf));
30 EXPECT_FALSE(func(neg_inf));
31 EXPECT_FALSE(func(min_normal));
32 EXPECT_FALSE(func(max_normal));
33 EXPECT_FALSE(func(neg_max_normal));
34 EXPECT_TRUE(func(min_denormal));
35 EXPECT_TRUE(func(neg_min_denormal));
36 EXPECT_TRUE(func(max_denormal));
37 EXPECT_FALSE(func(zero));
38 EXPECT_FALSE(func(neg_zero));
39 }
40};
41
42#define LIST_ISSUBNORMAL_TESTS(T, func) \
43 using LlvmLibcIsSubnormalTest = IsSubnormalTest<T>; \
44 TEST_F(LlvmLibcIsSubnormalTest, SpecialNumbers) { \
45 auto issubnormal_func = [](T x) { return func(x); }; \
46 testSpecialNumbers(issubnormal_func); \
47 }
48
49#endif // LLVM_LIBC_TEST_INCLUDE_MATH_ISSUBNORMAL_H
50

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