32 #ifndef _GLIBCXX_CXX_IO_H 33 #define _GLIBCXX_CXX_IO_H 1 36 #include <bits/gthr.h> 38 namespace std _GLIBCXX_VISIBILITY(default)
40 _GLIBCXX_BEGIN_NAMESPACE_VERSION
42 typedef __gthread_mutex_t __c_lock;
45 typedef FILE __c_file;
47 _GLIBCXX_END_NAMESPACE_VERSION
ISO C++ entities toplevel namespace is std.