29#ifndef _GLIBCXX_TR1_CWCTYPE
30#define _GLIBCXX_TR1_CWCTYPE 1
32#pragma GCC system_header
36#ifdef _GLIBCXX_USE_WCHAR_T
38namespace std _GLIBCXX_VISIBILITY(default)
40_GLIBCXX_BEGIN_NAMESPACE_VERSION
44#if _GLIBCXX_HAVE_ISWBLANK
49_GLIBCXX_END_NAMESPACE_VERSION
ISO C++ entities toplevel namespace is std.