freebsd-dev/contrib/libstdc++/include/bits/c++config
2005-06-03 03:29:38 +00:00

96 lines
3.3 KiB
C++

// Predefined symbols and macros -*- C++ -*-
// Copyright (C) 1997, 1998, 1999, 2000, 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.
#ifndef _CXXCONFIG
#define _CXXCONFIG 1
// Pick up any OS-specific definitions.
#include <bits/os_defines.h>
// The current version of the C++ library in compressed ISO date format.
#define __GLIBCXX__ 20050519
// Allow use of "export template." This is currently not a feature
// that g++ supports.
// #define _GLIBCXX_EXPORT_TEMPLATE 1
// Allow use of the GNU syntax extension, "extern template." This
// extension is fully documented in the g++ manual, but in a nutshell,
// it inhibits all implicit instantiations and is used throughout the
// library to avoid multiple weak definitions for required types that
// are already explicitly instantiated in the library binary. This
// substantially reduces the binary size of resulting executables.
#ifndef _GLIBCXX_EXTERN_TEMPLATE
# define _GLIBCXX_EXTERN_TEMPLATE 1
#endif
// Debug mode support. Debug mode basic_string is not allowed to be
// associated with std, because of locale and exception link
// dependence.
namespace __gnu_debug_def { }
namespace __gnu_debug
{
using namespace __gnu_debug_def;
}
#ifdef _GLIBCXX_DEBUG
# define _GLIBCXX_STD __gnu_norm
namespace __gnu_norm
{
using namespace std;
}
namespace std
{
using namespace __gnu_debug_def __attribute__ ((strong));
}
#else
# define _GLIBCXX_STD std
#endif
// The remainder of the prewritten config is automatic; all the
// user hooks are listed above.
// Create a boolean flag to be used to determine if --fast-math is set.
#ifdef __FAST_MATH__
# define _GLIBCXX_FAST_MATH 1
#else
# define _GLIBCXX_FAST_MATH 0
#endif
// This marks string literals in header files to be extracted for eventual
// translation. It is primarily used for messages in thrown exceptions; see
// src/functexcept.cc. We use __N because the more traditional _N is used
// for something else under certain OSes (see BADNAMES).
#define __N(msgid) (msgid)
// End of prewritten config; the discovered settings follow.