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// Copyright (C) 2001 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING. If not, write to the Free
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.
// As a special exception, you may use this file as part of a free software
// library without restriction. Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the GNU General Public License. This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.
#include "bits/c++config.h"
#include "bits/gthr.h"
#include <fstream>
#include <istream>
#include <ostream>
// On AIX, and perhaps other systems, library initialization order is
// not guaranteed. For example, the static initializers for the main
// program might run before the static initializers for this library.
// That means that we cannot rely on static initialization in the
// library; there is no guarantee that things will get initialized in
// time. This file contains definitions of all global variables that
// require initialization as arrays of characters.
// Because <iostream> declares the standard streams to be [io]stream
// types instead of say [io]fstream types, it is also necessary to
// allocate the actual file buffers in this file.
namespace std
{
typedef char fake_istream[sizeof(istream)]
__attribute__ ((aligned(__alignof__(istream))));
typedef char fake_ostream[sizeof(ostream)]
__attribute__ ((aligned(__alignof__(ostream))));
fake_istream cin;
fake_ostream cout;
fake_ostream cerr;
fake_ostream clog;
typedef char fake_filebuf[sizeof(filebuf)]
__attribute__ ((aligned(__alignof__(filebuf))));
fake_filebuf buf_cout;
fake_filebuf buf_cin;
fake_filebuf buf_cerr;
#ifdef _GLIBCPP_USE_WCHAR_T
typedef char fake_wistream[sizeof(wistream)]
__attribute__ ((aligned(__alignof__(wistream))));
typedef char fake_wostream[sizeof(wostream)]
__attribute__ ((aligned(__alignof__(wostream))));
fake_wistream wcin;
fake_wostream wcout;
fake_wostream wcerr;
fake_wostream wclog;
typedef char fake_wfilebuf[sizeof(wfilebuf)]
__attribute__ ((aligned(__alignof__(wfilebuf))));
fake_wfilebuf buf_wcout;
fake_wfilebuf buf_wcin;
fake_wfilebuf buf_wcerr;
#endif
// Globals for once-only runtime initialization of mutex objects. This
// allows static initialization of these objects on systems that need a
// function call to initialize a mutex. For example, see stl_threads.h.
#if __GTHREADS
#ifdef __GTHREAD_MUTEX_INIT
// This path is not needed since static initialization of mutexs works
// on this platform.
#elif defined(__GTHREAD_MUTEX_INIT_FUNCTION)
__gthread_once_t _GLIBCPP_once = __GTHREAD_ONCE_INIT;
__gthread_mutex_t _GLIBCPP_mutex;
__gthread_mutex_t *_GLIBCPP_mutex_address;
// Once-only initializer function for _GLIBCPP_mutex.
void
_GLIBCPP_mutex_init ()
{
__GTHREAD_MUTEX_INIT_FUNCTION (&_GLIBCPP_mutex);
}
// Once-only initializer function for _GLIBCPP_mutex_address.
void
_GLIBCPP_mutex_address_init ()
{
__GTHREAD_MUTEX_INIT_FUNCTION (_GLIBCPP_mutex_address);
}
#endif
#endif
}
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