1 //===----------------------------------------------------------------------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9
10 // <fenv.h>
11
12 #include <fenv.h>
13 #include <type_traits>
14
15 #ifndef FE_DIVBYZERO
16 #error FE_DIVBYZERO not defined
17 #endif
18
19 #ifndef FE_INEXACT
20 #error FE_INEXACT not defined
21 #endif
22
23 #ifndef FE_INVALID
24 #error FE_INVALID not defined
25 #endif
26
27 #ifndef FE_OVERFLOW
28 #error FE_OVERFLOW not defined
29 #endif
30
31 #ifndef FE_UNDERFLOW
32 #error FE_UNDERFLOW not defined
33 #endif
34
35 #ifndef FE_ALL_EXCEPT
36 #error FE_ALL_EXCEPT not defined
37 #endif
38
39 #ifndef FE_DOWNWARD
40 #error FE_DOWNWARD not defined
41 #endif
42
43 #ifndef FE_TONEAREST
44 #error FE_TONEAREST not defined
45 #endif
46
47 #ifndef FE_TOWARDZERO
48 #error FE_TOWARDZERO not defined
49 #endif
50
51 #ifndef FE_UPWARD
52 #error FE_UPWARD not defined
53 #endif
54
55 #ifndef FE_DFL_ENV
56 #error FE_DFL_ENV not defined
57 #endif
58
main()59 int main()
60 {
61 fenv_t fenv = {0};
62 fexcept_t fex = 0;
63 static_assert((std::is_same<decltype(feclearexcept(0)), int>::value), "");
64 static_assert((std::is_same<decltype(fegetexceptflag(&fex, 0)), int>::value), "");
65 static_assert((std::is_same<decltype(feraiseexcept(0)), int>::value), "");
66 static_assert((std::is_same<decltype(fesetexceptflag(&fex, 0)), int>::value), "");
67 static_assert((std::is_same<decltype(fetestexcept(0)), int>::value), "");
68 static_assert((std::is_same<decltype(fegetround()), int>::value), "");
69 static_assert((std::is_same<decltype(fesetround(0)), int>::value), "");
70 static_assert((std::is_same<decltype(fegetenv(&fenv)), int>::value), "");
71 static_assert((std::is_same<decltype(feholdexcept(&fenv)), int>::value), "");
72 static_assert((std::is_same<decltype(fesetenv(&fenv)), int>::value), "");
73 static_assert((std::is_same<decltype(feupdateenv(&fenv)), int>::value), "");
74 }
75