// 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 _GLIBCXX_CXX_CONFIG_H #define _GLIBCXX_CXX_CONFIG_H 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 support. #define _GLIBCXX_HAVE_ATTRIBUTE_VISIBILITY #if _GLIBCXX_HAVE_ATTRIBUTE_VISIBILITY # define _GLIBCXX_VISIBILITY(V) __attribute__ ((__visibility__ (#V))) #else # define _GLIBCXX_VISIBILITY(V) #endif // Guide to libstdc++ namespaces. /* namespace std { namespace __debug { } namespace __parallel { } namespace __norm { } // __normative, __shadow, __replaced namespace __cxx1998 { } namespace tr1 { } } namespace __gnu_cxx { namespace __debug { } namespace __norm { } } */ // Macros for activating various namespace association modes. // _GLIBCXX_NAMESPACE_ASSOCIATION_DEBUG // _GLIBCXX_NAMESPACE_ASSOCIATION_PARALLEL // _GLIBCXX_NAMESPACE_ASSOCIATION_VERSION #ifdef _GLIBCXX_DEBUG # define _GLIBCXX_NAMESPACE_ASSOCIATION_DEBUG 1 #endif #ifdef _GLIBCXX_PARALLEL # define _GLIBCXX_NAMESPACE_ASSOCIATION_PARALLEL 1 #endif #define _GLIBCXX_NAMESPACE_ASSOCIATION_VERSION // Defined if any namespace association modes are active. #if _GLIBCXX_NAMESPACE_ASSOCIATION_DEBUG \ || _GLIBCXX_NAMESPACE_ASSOCIATION_PARALLEL \ || _GLIBCXX_NAMESPACE_ASSOCIATION_VERSION # define _GLIBCXX_USE_NAMESPACE_ASSOCIATION 1 #endif // Macros for namespace scope. Either namespace std:: or __gnu_cxx::, // or the name of some nested namespace within it. // _GLIBCXX_STD // _GLIBCXX_STD_D // _GLIBCXX_STD_P // _GLIBCXX_EXT // _GLIBCXX_EXT_D // _GLIBCXX_EXT_P // // Macros for enclosing namepaces and possibly nested namespaces. // _GLIBCXX_BEGIN_NAMESPACE // _GLIBCXX_END_NAMESPACE // _GLIBCXX_BEGIN_NESTED_NAMESPACE // _GLIBCXX_END_NESTED_NAMESPACE // _GLIBCXX_BEGIN_POTENTIAL_NESTED_NAMESPACE // _GLIBCXX_END_POTENTIAL_NESTED_NAMESPACE #ifndef _GLIBCXX_USE_NAMESPACE_ASSOCIATION # define _GLIBCXX_STD_D _GLIBCXX_STD # define _GLIBCXX_STD_P _GLIBCXX_STD # define _GLIBCXX_STD std # define _GLIBCXX_EXT_D _GLIBCXX_EXT # define _GLIBCXX_EXT_P _GLIBCXX_EXT # define _GLIBCXX_EXT __gnu_cxx # define _GLIBCXX_BEGIN_NESTED_NAMESPACE(X, Y) _GLIBCXX_BEGIN_NAMESPACE(X) # define _GLIBCXX_END_NESTED_NAMESPACE _GLIBCXX_END_NAMESPACE # define _GLIBCXX_BEGIN_NAMESPACE(X) namespace X _GLIBCXX_VISIBILITY(default) { # define _GLIBCXX_END_NAMESPACE } #else # if _GLIBCXX_NAMESPACE_ASSOCIATION_VERSION // && not anything else # define _GLIBCXX_STD_D _GLIBCXX_STD # define _GLIBCXX_STD_P _GLIBCXX_STD # define _GLIBCXX_STD _6 # define _GLIBCXX_EXT _6 # define _GLIBCXX_BEGIN_NAMESPACE(X) _GLIBCXX_BEGIN_NESTED_NAMESPACE(X, _6) # define _GLIBCXX_END_NAMESPACE _GLIBCXX_END_NESTED_NAMESPACE # endif // debug # if _GLIBCXX_NAMESPACE_ASSOCIATION_DEBUG && !_GLIBCXX_NAMESPACE_ASSOCIATION_PARALLEL # define _GLIBCXX_STD_D __norm # define _GLIBCXX_STD_P _GLIBCXX_STD # define _GLIBCXX_STD __cxx1998 # define _GLIBCXX_EXT_D __norm # define _GLIBCXX_EXT_P _GLIBCXX_EXT # define _GLIBCXX_EXT __cxx1998 # define _GLIBCXX_BEGIN_NAMESPACE(X) namespace X _GLIBCXX_VISIBILITY(default) { # define _GLIBCXX_END_NAMESPACE } # define _GLIBCXX_EXTERN_TEMPLATE 0 # endif // parallel # if _GLIBCXX_NAMESPACE_ASSOCIATION_PARALLEL && !_GLIBCXX_NAMESPACE_ASSOCIATION_DEBUG # define _GLIBCXX_STD_D _GLIBCXX_STD # define _GLIBCXX_STD_P __norm # define _GLIBCXX_STD __cxx1998 # define _GLIBCXX_EXT_D _GLIBCXX_EXT # define _GLIBCXX_EXT_P __norm # define _GLIBCXX_EXT __cxx1998 # define _GLIBCXX_BEGIN_NAMESPACE(X) namespace X _GLIBCXX_VISIBILITY(default) { # define _GLIBCXX_END_NAMESPACE } # define _GLIBCXX_EXTERN_TEMPLATE 0 # endif // debug + parallel # if _GLIBCXX_NAMESPACE_ASSOCIATION_PARALLEL && _GLIBCXX_NAMESPACE_ASSOCIATION_DEBUG # define _GLIBCXX_STD_D __norm # define _GLIBCXX_STD_P __norm # define _GLIBCXX_STD __cxx1998 # define _GLIBCXX_EXT_D __norm # define _GLIBCXX_EXT_P __norm # define _GLIBCXX_EXT __gnu_cxx # define _GLIBCXX_BEGIN_NAMESPACE(X) namespace X _GLIBCXX_VISIBILITY(default) { # define _GLIBCXX_END_NAMESPACE } # define _GLIBCXX_EXTERN_TEMPLATE 0 # endif # if __NO_INLINE__ && !__GXX_WEAK__ # warning currently using namepace associated mode which may fail \ without inlining due to lack of weak symbols # endif # define _GLIBCXX_BEGIN_NESTED_NAMESPACE(X, Y) namespace X { namespace Y _GLIBCXX_VISIBILITY(default) { # define _GLIBCXX_END_NESTED_NAMESPACE } } #endif // Namespace associations for debug mode. #if _GLIBCXX_NAMESPACE_ASSOCIATION_DEBUG namespace std { namespace __norm { } namespace __debug { } namespace __cxx1998 { } using namespace __debug __attribute__ ((strong)); using namespace __cxx1998 __attribute__ ((strong)); } namespace __gnu_cxx { namespace __norm { } namespace __debug { } namespace __cxx1998 { } using namespace __debug __attribute__ ((strong)); using namespace __cxx1998 __attribute__ ((strong)); } #endif // Namespace associations for parallel mode. #if _GLIBCXX_NAMESPACE_ASSOCIATION_PARALLEL namespace std { namespace __norm { } namespace __parallel { } namespace __cxx1998 { } using namespace __parallel __attribute__ ((strong)); using namespace __cxx1998 __attribute__ ((strong)); } namespace __gnu_cxx { namespace __norm { } namespace __parallel { } namespace __cxx1998 { } using namespace __parallel __attribute__ ((strong)); using namespace __cxx1998 __attribute__ ((strong)); } #endif // Namespace associations for versioning mode. #if _GLIBCXX_NAMESPACE_ASSOCIATION_VERSION namespace std { namespace _6 { } using namespace _6 __attribute__ ((strong)); } namespace __gnu_cxx { namespace _6 { } using namespace _6 __attribute__ ((strong)); } namespace std { namespace tr1 { namespace _6 { } using namespace _6 __attribute__ ((strong)); } } #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 // Macro used to indicate that the native "C" includes, when compiled // as "C++", have declarations in namespace std and not the global // namespace. Note, this is unrelated to possible "C" compatibility // includes that inject C90/C99 names into the global namespace. #if __cplusplus == 199711L # define _GLIBCXX_NAMESPACE_GLOBAL_INJECTION 1 #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.