libcxx/test/std/depr/depr.c.headers/fenv_h.pass.cpp

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