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+// 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
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