1 //===----------------------------------------------------------------------===//
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 // <cfenv>
10
11 #include <cfenv>
12 #include <type_traits>
13
14 #include "test_macros.h"
15
16 #ifndef FE_DIVBYZERO
17 #error FE_DIVBYZERO not defined
18 #endif
19
20 #ifndef FE_INEXACT
21 #error FE_INEXACT not defined
22 #endif
23
24 #ifndef FE_INVALID
25 #error FE_INVALID not defined
26 #endif
27
28 #ifndef FE_OVERFLOW
29 #error FE_OVERFLOW not defined
30 #endif
31
32 #ifndef FE_UNDERFLOW
33 #error FE_UNDERFLOW not defined
34 #endif
35
36 #ifndef FE_ALL_EXCEPT
37 #error FE_ALL_EXCEPT not defined
38 #endif
39
40 #ifndef FE_DOWNWARD
41 #error FE_DOWNWARD not defined
42 #endif
43
44 #ifndef FE_TONEAREST
45 #error FE_TONEAREST not defined
46 #endif
47
48 #ifndef FE_TOWARDZERO
49 #error FE_TOWARDZERO not defined
50 #endif
51
52 #ifndef FE_UPWARD
53 #error FE_UPWARD not defined
54 #endif
55
56 #ifndef FE_DFL_ENV
57 #error FE_DFL_ENV not defined
58 #endif
59
main(int,char **)60 int main(int, char**)
61 {
62 std::fenv_t fenv;
63 std::fexcept_t fex;
64 ((void)fenv); // Prevent unused warning
65 ((void)fex); // Prevent unused warning
66 static_assert((std::is_same<decltype(std::feclearexcept(0)), int>::value), "");
67 static_assert((std::is_same<decltype(std::fegetexceptflag(&fex, 0)), int>::value), "");
68 static_assert((std::is_same<decltype(std::feraiseexcept(0)), int>::value), "");
69 static_assert((std::is_same<decltype(std::fesetexceptflag(&fex, 0)), int>::value), "");
70 static_assert((std::is_same<decltype(std::fetestexcept(0)), int>::value), "");
71 static_assert((std::is_same<decltype(std::fegetround()), int>::value), "");
72 static_assert((std::is_same<decltype(std::fesetround(0)), int>::value), "");
73 static_assert((std::is_same<decltype(std::fegetenv(&fenv)), int>::value), "");
74 static_assert((std::is_same<decltype(std::feholdexcept(&fenv)), int>::value), "");
75 static_assert((std::is_same<decltype(std::fesetenv(&fenv)), int>::value), "");
76 static_assert((std::is_same<decltype(std::feupdateenv(&fenv)), int>::value), "");
77
78 return 0;
79 }
80