29#ifndef _GLIBCXX_TR1_CWCTYPE
30#define _GLIBCXX_TR1_CWCTYPE 1
33#pragma GCC system_header
40#ifdef _GLIBCXX_USE_WCHAR_T
42namespace std _GLIBCXX_VISIBILITY(default)
44_GLIBCXX_BEGIN_NAMESPACE_VERSION
48#if _GLIBCXX_HAVE_ISWBLANK
53_GLIBCXX_END_NAMESPACE_VERSION
ISO C++ entities toplevel namespace is std.