29 #ifndef _GLIBCXX_TR1_CWCTYPE
30 #define _GLIBCXX_TR1_CWCTYPE 1
32 #pragma GCC system_header
36 #ifdef _GLIBCXX_USE_WCHAR_T
38 namespace std _GLIBCXX_VISIBILITY(default)
42 #if _GLIBCXX_HAVE_ISWBLANK
48 #endif // _GLIBCXX_USE_WCHAR_T
50 #endif // _GLIBCXX_TR1_CWCTYPE
ISO C++ entities toplevel namespace is std.