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
ISO C++ entities toplevel namespace is std.