1169691Skan// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 2169691Skan// Free Software Foundation, Inc. 3132720Skan// 4132720Skan// This file is part of the GNU ISO C++ Library. This library is free 5132720Skan// software; you can redistribute it and/or modify it under the 6132720Skan// terms of the GNU General Public License as published by the 7132720Skan// Free Software Foundation; either version 2, or (at your option) 8132720Skan// any later version. 9132720Skan 10132720Skan// This library is distributed in the hope that it will be useful, 11132720Skan// but WITHOUT ANY WARRANTY; without even the implied warranty of 12132720Skan// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13132720Skan// GNU General Public License for more details. 14132720Skan 15132720Skan// You should have received a copy of the GNU General Public License along 16132720Skan// with this library; see the file COPYING. If not, write to the Free 17169691Skan// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 18132720Skan// USA. 19132720Skan 20132720Skan// As a special exception, you may use this file as part of a free software 21132720Skan// library without restriction. Specifically, if other files instantiate 22132720Skan// templates or use macros or inline functions from this file, or you compile 23132720Skan// this file and link it with other files to produce an executable, this 24132720Skan// file does not by itself cause the resulting executable to be covered by 25132720Skan// the GNU General Public License. This exception does not however 26132720Skan// invalidate any other reasons why the executable file might be covered by 27132720Skan// the GNU General Public License. 28132720Skan 29132720Skan#include "bits/c++config.h" 30132720Skan#include <fstream> 31132720Skan#include <istream> 32132720Skan#include <ostream> 33132720Skan#include <ext/stdio_filebuf.h> 34132720Skan#include <ext/stdio_sync_filebuf.h> 35132720Skan 36132720Skan// On AIX, and perhaps other systems, library initialization order is 37132720Skan// not guaranteed. For example, the static initializers for the main 38132720Skan// program might run before the static initializers for this library. 39132720Skan// That means that we cannot rely on static initialization in the 40132720Skan// library; there is no guarantee that things will get initialized in 41132720Skan// time. This file contains definitions of all global variables that 42132720Skan// require initialization as arrays of characters. 43132720Skan 44132720Skan// NB: asm directives can rename these non-exported, namespace 45132720Skan// __gnu_cxx symbols into exported, namespace std symbols with the 46132720Skan// appropriate symbol version name. 47132720Skan// The rename syntax is 48132720Skan// asm (".symver currentname,oldname@@GLIBCXX_3.2") 49132720Skan// In macro form: 50132720Skan// _GLIBCXX_ASM_SYMVER(currentname, oldname, GLIBCXX_3.2) 51132720Skan 52169691Skan_GLIBCXX_BEGIN_NAMESPACE(std) 53169691Skan 54132720Skan // Standard stream objects. 55132720Skan // NB: Iff <iostream> is included, these definitions become wonky. 56132720Skan typedef char fake_istream[sizeof(istream)] 57132720Skan __attribute__ ((aligned(__alignof__(istream)))); 58132720Skan typedef char fake_ostream[sizeof(ostream)] 59132720Skan __attribute__ ((aligned(__alignof__(ostream)))); 60132720Skan fake_istream cin; 61132720Skan fake_ostream cout; 62132720Skan fake_ostream cerr; 63132720Skan fake_ostream clog; 64132720Skan 65132720Skan#ifdef _GLIBCXX_USE_WCHAR_T 66132720Skan typedef char fake_wistream[sizeof(wistream)] 67132720Skan __attribute__ ((aligned(__alignof__(wistream)))); 68132720Skan typedef char fake_wostream[sizeof(wostream)] 69132720Skan __attribute__ ((aligned(__alignof__(wostream)))); 70132720Skan fake_wistream wcin; 71132720Skan fake_wostream wcout; 72132720Skan fake_wostream wcerr; 73132720Skan fake_wostream wclog; 74132720Skan#endif 75132720Skan 76169691Skan_GLIBCXX_END_NAMESPACE 77169691Skan 78169691Skannamespace __gnu_internal _GLIBCXX_VISIBILITY(hidden) 79132720Skan{ 80132720Skan using namespace std; 81132720Skan using namespace __gnu_cxx; 82132720Skan 83132720Skan // We use different stream buffer types depending on whether 84132720Skan // ios_base::sync_with_stdio(false) has been called. 85132720Skan typedef char fake_stdiobuf[sizeof(stdio_sync_filebuf<char>)] 86132720Skan __attribute__ ((aligned(__alignof__(stdio_sync_filebuf<char>)))); 87132720Skan fake_stdiobuf buf_cout_sync; 88132720Skan fake_stdiobuf buf_cin_sync; 89132720Skan fake_stdiobuf buf_cerr_sync; 90132720Skan 91132720Skan typedef char fake_filebuf[sizeof(stdio_filebuf<char>)] 92132720Skan __attribute__ ((aligned(__alignof__(stdio_filebuf<char>)))); 93132720Skan fake_filebuf buf_cout; 94132720Skan fake_filebuf buf_cin; 95132720Skan fake_filebuf buf_cerr; 96132720Skan 97132720Skan#ifdef _GLIBCXX_USE_WCHAR_T 98132720Skan typedef char fake_wstdiobuf[sizeof(stdio_sync_filebuf<wchar_t>)] 99132720Skan __attribute__ ((aligned(__alignof__(stdio_sync_filebuf<wchar_t>)))); 100132720Skan fake_wstdiobuf buf_wcout_sync; 101132720Skan fake_wstdiobuf buf_wcin_sync; 102132720Skan fake_wstdiobuf buf_wcerr_sync; 103132720Skan 104132720Skan typedef char fake_wfilebuf[sizeof(stdio_filebuf<wchar_t>)] 105132720Skan __attribute__ ((aligned(__alignof__(stdio_filebuf<wchar_t>)))); 106132720Skan fake_wfilebuf buf_wcout; 107132720Skan fake_wfilebuf buf_wcin; 108132720Skan fake_wfilebuf buf_wcerr; 109132720Skan#endif 110132720Skan} // namespace __gnu_internal 111