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// Picolibc does not define some of the floating point environment macros for
10// arm platforms without hardware floating point support.
11// UNSUPPORTED: LIBCXX-PICOLIBC-FIXME
12
13// <cfenv>
14
15#include <cfenv>
16#include <type_traits>
17
18#include "test_macros.h"
19
20#ifndef FE_DIVBYZERO
21#error FE_DIVBYZERO not defined
22#endif
23
24#ifndef FE_INEXACT
25#error FE_INEXACT not defined
26#endif
27
28#ifndef FE_INVALID
29#error FE_INVALID not defined
30#endif
31
32#ifndef FE_OVERFLOW
33#error FE_OVERFLOW not defined
34#endif
35
36#ifndef FE_UNDERFLOW
37#error FE_UNDERFLOW not defined
38#endif
39
40#ifndef FE_ALL_EXCEPT
41#error FE_ALL_EXCEPT not defined
42#endif
43
44#ifndef FE_DOWNWARD
45#error FE_DOWNWARD not defined
46#endif
47
48#ifndef FE_TONEAREST
49#error FE_TONEAREST not defined
50#endif
51
52#ifndef FE_TOWARDZERO
53#error FE_TOWARDZERO not defined
54#endif
55
56#ifndef FE_UPWARD
57#error FE_UPWARD not defined
58#endif
59
60#ifndef FE_DFL_ENV
61#error FE_DFL_ENV not defined
62#endif
63
64int main(int, char**)
65{
66 std::fenv_t fenv;
67 std::fexcept_t fex;
68 ((void)fenv); // Prevent unused warning
69 ((void)fex); // Prevent unused warning
70 static_assert((std::is_same<decltype(std::feclearexcept(0)), int>::value), "");
71 static_assert((std::is_same<decltype(std::fegetexceptflag(&fex, 0)), int>::value), "");
72 static_assert((std::is_same<decltype(std::feraiseexcept(0)), int>::value), "");
73 static_assert((std::is_same<decltype(std::fesetexceptflag(&fex, 0)), int>::value), "");
74 static_assert((std::is_same<decltype(std::fetestexcept(0)), int>::value), "");
75 static_assert((std::is_same<decltype(std::fegetround()), int>::value), "");
76 static_assert((std::is_same<decltype(std::fesetround(0)), int>::value), "");
77 static_assert((std::is_same<decltype(std::fegetenv(&fenv)), int>::value), "");
78 static_assert((std::is_same<decltype(std::feholdexcept(&fenv)), int>::value), "");
79 static_assert((std::is_same<decltype(std::fesetenv(&fenv)), int>::value), "");
80 static_assert((std::is_same<decltype(std::feupdateenv(&fenv)), int>::value), "");
81
82 return 0;
83}
84

source code of libcxx/test/std/numerics/cfenv/cfenv.syn/cfenv.pass.cpp