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Diffstat (limited to 'libstdc++/include/bits/c++config')
| -rw-r--r-- | libstdc++/include/bits/c++config | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/libstdc++/include/bits/c++config b/libstdc++/include/bits/c++config new file mode 100644 index 0000000..cf20c1b --- /dev/null +++ b/libstdc++/include/bits/c++config @@ -0,0 +1,206 @@ +// Predefined symbols and macros -*- C++ -*- + +// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, +// 2006, 2007 +// 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, +// 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. + +/** @file c++config.h + * This is an internal header file, included by other library headers. + * You should not attempt to use it directly. + */ + +#ifndef _CXXCONFIG +#define _CXXCONFIG 1 + +// Pick up any OS-specific definitions. +#include <bits/os_defines.h> + +// Pick up any CPU-specific definitions. +#include <bits/cpu_defines.h> + +// The current version of the C++ library in compressed ISO date format. +#define __GLIBCXX__ + +// Macros for visibility. +#define _GLIBCXX_HAVE_ATTRIBUTE_VISIBILITY + +#if _GLIBCXX_HAVE_ATTRIBUTE_VISIBILITY +#define _GLIBCXX_VISIBILITY(V) __attribute__ ((__visibility__ (#V))) +#else +#define _GLIBCXX_VISIBILITY(V) +#endif + +// Macros for controlling various namespace association schemes and modes. +#ifdef _GLIBCXX_DEBUG +# define _GLIBCXX_NAMESPACE_ASSOCIATION_DEBUG 1 +#endif + +#define _GLIBCXX_NAMESPACE_ASSOCIATION_VERSION + +// Macros for namespace scope. +// _GLIBCXX_BEGIN_NAMESPACE +// _GLIBCXX_END_NAMESPACE +// _GLIBCXX_BEGIN_NESTED_NAMESPACE +// _GLIBCXX_END_NESTED_NAMESPACE +#if _GLIBCXX_NAMESPACE_ASSOCIATION_VERSION +# define _GLIBCXX_BEGIN_NESTED_NAMESPACE(X, Y) namespace X { namespace Y _GLIBCXX_VISIBILITY(default) { +# define _GLIBCXX_END_NESTED_NAMESPACE } } +# define _GLIBCXX_BEGIN_NAMESPACE(X) _GLIBCXX_BEGIN_NESTED_NAMESPACE(X, _6) +# define _GLIBCXX_END_NAMESPACE _GLIBCXX_END_NESTED_NAMESPACE +#else +# define _GLIBCXX_BEGIN_NAMESPACE(X) namespace X _GLIBCXX_VISIBILITY(default) { +# define _GLIBCXX_END_NAMESPACE } +# if _GLIBCXX_NAMESPACE_ASSOCIATION_DEBUG +# define _GLIBCXX_BEGIN_NESTED_NAMESPACE(X, Y) namespace X { namespace Y _GLIBCXX_VISIBILITY(default) { +# define _GLIBCXX_END_NESTED_NAMESPACE } } +# else +# define _GLIBCXX_BEGIN_NESTED_NAMESPACE(X, Y) _GLIBCXX_BEGIN_NAMESPACE(X) +# define _GLIBCXX_END_NESTED_NAMESPACE _GLIBCXX_END_NAMESPACE +# endif +#endif + +// Namespace associations for versioning mode. +#if _GLIBCXX_NAMESPACE_ASSOCIATION_VERSION +namespace std +{ + namespace _6 { } + using namespace _6 __attribute__ ((strong)); +} + +// In addition, other supported namespace configurations. +namespace __gnu_cxx +{ + namespace _6 { } + using namespace _6 __attribute__ ((strong)); +} + +namespace std +{ + namespace tr1 + { + namespace _6 { } + using namespace _6 __attribute__ ((strong)); + } +} +#endif + +// Namespace associations for debug mode. +#if _GLIBCXX_NAMESPACE_ASSOCIATION_DEBUG +namespace std +{ + namespace __norm { } + namespace __debug { } + using namespace __debug __attribute__ ((strong)); +} + +namespace __gnu_cxx +{ + namespace __norm { } + namespace __debug { } + using namespace __debug __attribute__ ((strong)); +} + +# define _GLIBCXX_STD __norm +# define _GLIBCXX_EXT __norm +# define _GLIBCXX_EXTERN_TEMPLATE 0 +# if __NO_INLINE__ && !__GXX_WEAK__ +# warning debug mode without inlining may fail due to lack of weak symbols +# endif +#else +#if _GLIBCXX_NAMESPACE_ASSOCIATION_VERSION +# define _GLIBCXX_STD _6 +# define _GLIBCXX_EXT _6 +#else +# define _GLIBCXX_STD std +# define _GLIBCXX_EXT __gnu_cxx +#endif +#endif + +/* Define if compatibility should be provided for -mlong-double-64. */ +#undef _GLIBCXX_LONG_DOUBLE_COMPAT + +// XXX GLIBCXX_ABI Deprecated +// Namespace associations for long double 128 mode. +_GLIBCXX_BEGIN_NAMESPACE(std) +#if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__ +# define _GLIBCXX_LDBL_NAMESPACE __gnu_cxx_ldbl128:: +# define _GLIBCXX_BEGIN_LDBL_NAMESPACE namespace __gnu_cxx_ldbl128 { +# define _GLIBCXX_END_LDBL_NAMESPACE } + namespace __gnu_cxx_ldbl128 { } + using namespace __gnu_cxx_ldbl128 __attribute__((__strong__)); +#else +# define _GLIBCXX_LDBL_NAMESPACE +# define _GLIBCXX_BEGIN_LDBL_NAMESPACE +# define _GLIBCXX_END_LDBL_NAMESPACE +#endif +_GLIBCXX_END_NAMESPACE + + +// 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 + + +// Certain function definitions that are meant to be overridable from +// user code are decorated with this macro. For some targets, this +// macro causes these definitions to be weak. +#ifndef _GLIBCXX_WEAK_DEFINITION +# define _GLIBCXX_WEAK_DEFINITION +#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) + +// For example, <windows.h> is known to #define min and max as macros... +#undef min +#undef max + +// End of prewritten config; the discovered settings follow. |
