xref: /aosp_15_r20/external/llvm-libc/test/include/IsNormalTest.h (revision 71db0c75aadcf003ffe3238005f61d7618a3fead)
1 //===-- Utility class to test the isnormal 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_ISNORMAL_H
10 #define LLVM_LIBC_TEST_INCLUDE_MATH_ISNORMAL_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 
17 template <typename T>
18 class IsNormalTest : public LIBC_NAMESPACE::testing::Test {
19   DECLARE_SPECIAL_CONSTANTS(T)
20 
21 public:
22   typedef int (*IsNormalFunc)(T);
23 
testSpecialNumbers(IsNormalFunc func)24   void testSpecialNumbers(IsNormalFunc func) {
25     EXPECT_EQ(func(aNaN), 0);
26     EXPECT_EQ(func(neg_aNaN), 0);
27     EXPECT_EQ(func(sNaN), 0);
28     EXPECT_EQ(func(neg_sNaN), 0);
29     EXPECT_EQ(func(inf), 0);
30     EXPECT_EQ(func(neg_inf), 0);
31     EXPECT_EQ(func(min_normal), 1);
32     EXPECT_EQ(func(max_normal), 1);
33     EXPECT_EQ(func(neg_max_normal), 1);
34     EXPECT_EQ(func(min_denormal), 0);
35     EXPECT_EQ(func(neg_min_denormal), 0);
36     EXPECT_EQ(func(max_denormal), 0);
37     EXPECT_EQ(func(zero), 0);
38     EXPECT_EQ(func(neg_zero), 0);
39   }
40 };
41 
42 #define LIST_ISNORMAL_TESTS(T, func)                                           \
43   using LlvmLibcIsNormalTest = IsNormalTest<T>;                                \
44   TEST_F(LlvmLibcIsNormalTest, SpecialNumbers) {                               \
45     auto isnormal_func = [](T x) { return func(x); };                          \
46     testSpecialNumbers(isnormal_func);                                         \
47   }
48 
49 #endif // LLVM_LIBC_TEST_INCLUDE_MATH_ISNORMAL_H
50