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)
56 _GLIBCXX_BEGIN_NAMESPACE_VERSION
65 using ::feclearexcept;
66 using ::fegetexceptflag;
67 using ::feraiseexcept;
68 using ::fesetexceptflag;
80 _GLIBCXX_END_NAMESPACE_VERSION
83 #endif // _GLIBCXX_USE_C99_FENV_TR1
85 #endif // _GLIBCXX_TR1_CFENV