// Copyright (C) 2001, 2002, 2003, 2004 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> #include <ext/stdio_filebuf.h> #include <ext/stdio_sync_filebuf.h> // 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. // NB: asm directives can rename these non-exported, namespace // __gnu_cxx symbols into exported, namespace std symbols with the // appropriate symbol version name. // The rename syntax is // asm (".symver currentname,oldname@@GLIBCXX_3.2") // In macro form: // _GLIBCXX_ASM_SYMVER(currentname, oldname, GLIBCXX_3.2) namespace std { // Standard stream objects. // NB: Iff <iostream> is included, these definitions become wonky. 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; #ifdef _GLIBCXX_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; #endif } // namespace std namespace __gnu_internal { using namespace std; using namespace __gnu_cxx; // We use different stream buffer types depending on whether // ios_base::sync_with_stdio(false) has been called. typedef char fake_stdiobuf[sizeof(stdio_sync_filebuf<char>)] __attribute__ ((aligned(__alignof__(stdio_sync_filebuf<char>)))); fake_stdiobuf buf_cout_sync; fake_stdiobuf buf_cin_sync; fake_stdiobuf buf_cerr_sync; typedef char fake_filebuf[sizeof(stdio_filebuf<char>)] __attribute__ ((aligned(__alignof__(stdio_filebuf<char>)))); fake_filebuf buf_cout; fake_filebuf buf_cin; fake_filebuf buf_cerr; #ifdef _GLIBCXX_USE_WCHAR_T typedef char fake_wstdiobuf[sizeof(stdio_sync_filebuf<wchar_t>)] __attribute__ ((aligned(__alignof__(stdio_sync_filebuf<wchar_t>)))); fake_wstdiobuf buf_wcout_sync; fake_wstdiobuf buf_wcin_sync; fake_wstdiobuf buf_wcerr_sync; typedef char fake_wfilebuf[sizeof(stdio_filebuf<wchar_t>)] __attribute__ ((aligned(__alignof__(stdio_filebuf<wchar_t>)))); 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. #ifdef __GTHREAD_MUTEX_INIT #elif defined(__GTHREAD_MUTEX_INIT_FUNCTION) __gthread_once_t _GLIBCXX_once = __GTHREAD_ONCE_INIT; __gthread_mutex_t _GLIBCXX_mutex; __gthread_mutex_t *_GLIBCXX_mutex_address; // Once-only initializer function for _GLIBCXX_mutex. void _GLIBCXX_mutex_init () { __GTHREAD_MUTEX_INIT_FUNCTION (&_GLIBCXX_mutex); } // Once-only initializer function for _GLIBCXX_mutex_address. void _GLIBCXX_mutex_address_init () { __GTHREAD_MUTEX_INIT_FUNCTION (_GLIBCXX_mutex_address); } #endif } // namespace __gnu_internal