| // 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. |