// 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 // Pick up any CPU-specific definitions. #include // 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, is known to #define min and max as macros... #undef min #undef max // End of prewritten config; the discovered settings follow.