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 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
