29 #ifndef _GLIBCXX_TR1_CFENV 30 #define _GLIBCXX_TR1_CFENV 1 32 #pragma GCC system_header 36 #if _GLIBCXX_HAVE_FENV_H 40 #ifdef _GLIBCXX_USE_C99_FENV_TR1 43 #undef fegetexceptflag 45 #undef fesetexceptflag 54 namespace std _GLIBCXX_VISIBILITY(default)
63 using ::feclearexcept;
64 using ::fegetexceptflag;
65 using ::feraiseexcept;
66 using ::fesetexceptflag;
79 #endif // _GLIBCXX_USE_C99_FENV_TR1 81 #endif // _GLIBCXX_TR1_CFENV ISO C++ entities toplevel namespace is std.