c++config revision 161653 
1// Predefined symbols and macros -*- C++ -*-
2
3// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
4// Free Software Foundation, Inc.
5//
6// This file is part of the GNU ISO C++ Library.  This library is free
7// software; you can redistribute it and/or modify it under the
8// terms of the GNU General Public License as published by the
9// Free Software Foundation; either version 2, or (at your option)
10// any later version.
11
12// This library is distributed in the hope that it will be useful,
13// but WITHOUT ANY WARRANTY; without even the implied warranty of
14// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15// GNU General Public License for more details.
16
17// You should have received a copy of the GNU General Public License along
18// with this library; see the file COPYING.  If not, write to the Free
19// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
20// USA.
21
22// As a special exception, you may use this file as part of a free software
23// library without restriction.  Specifically, if other files instantiate
24// templates or use macros or inline functions from this file, or you compile
25// this file and link it with other files to produce an executable, this
26// file does not by itself cause the resulting executable to be covered by
27// the GNU General Public License.  This exception does not however
28// invalidate any other reasons why the executable file might be covered by
29// the GNU General Public License.
30
31#ifndef _CXXCONFIG
32#define _CXXCONFIG 1
33
34// Pick up any OS-specific definitions.
35#include <bits/os_defines.h>
36
37// The current version of the C++ library in compressed ISO date format.
38#define __GLIBCXX__ 20060311
39
40// Allow use of "export template." This is currently not a feature
41// that g++ supports.
42// #define _GLIBCXX_EXPORT_TEMPLATE 1
43
44// Allow use of the GNU syntax extension, "extern template." This
45// extension is fully documented in the g++ manual, but in a nutshell,
46// it inhibits all implicit instantiations and is used throughout the
47// library to avoid multiple weak definitions for required types that
48// are already explicitly instantiated in the library binary. This
49// substantially reduces the binary size of resulting executables.
50#ifndef _GLIBCXX_EXTERN_TEMPLATE
51# define _GLIBCXX_EXTERN_TEMPLATE 1
52#endif
53
54// Debug mode support. Debug mode basic_string is not allowed to be
55// associated with std, because of locale and exception link
56// dependence.
57namespace __gnu_debug_def { }
58
59namespace __gnu_debug 
60{ 
61  using namespace __gnu_debug_def;
62}
63
64#ifdef _GLIBCXX_DEBUG
65# define _GLIBCXX_STD __gnu_norm
66namespace __gnu_norm 
67{ 
68  using namespace std; 
69}
70namespace std
71{
72  using namespace __gnu_debug_def __attribute__ ((strong));
73}
74#else
75# define _GLIBCXX_STD std
76#endif
77
78
79// The remainder of the prewritten config is automatic; all the
80// user hooks are listed above.
81
82// Create a boolean flag to be used to determine if --fast-math is set.
83#ifdef __FAST_MATH__
84# define _GLIBCXX_FAST_MATH 1
85#else
86# define _GLIBCXX_FAST_MATH 0
87#endif
88
89// This marks string literals in header files to be extracted for eventual
90// translation.  It is primarily used for messages in thrown exceptions; see
91// src/functexcept.cc.  We use __N because the more traditional _N is used
92// for something else under certain OSes (see BADNAMES).
93#define __N(msgid)     (msgid)
94
95// End of prewritten config; the discovered settings follow.
96