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Diffstat (limited to 'libstdc++-v3/include/bits/c++config')
| -rw-r--r-- | libstdc++-v3/include/bits/c++config | 432 |
1 files changed, 432 insertions, 0 deletions
diff --git a/libstdc++-v3/include/bits/c++config b/libstdc++-v3/include/bits/c++config new file mode 100644 index 000000000..fce52475f --- /dev/null +++ b/libstdc++-v3/include/bits/c++config @@ -0,0 +1,432 @@ +// Predefined symbols and macros -*- C++ -*- + +// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, +// 2006, 2007, 2008, 2009, 2010, 2011 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 3, 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. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// <http://www.gnu.org/licenses/>. + +/** @file bits/c++config.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{iosfwd} + */ + +#ifndef _GLIBCXX_CXX_CONFIG_H +#define _GLIBCXX_CXX_CONFIG_H 1 + +// The current version of the C++ library in compressed ISO date format. +#define __GLIBCXX__ + +// Macros for various attributes. +// _GLIBCXX_PURE +// _GLIBCXX_CONST +// _GLIBCXX_NORETURN +// _GLIBCXX_NOTHROW +// _GLIBCXX_VISIBILITY +#ifndef _GLIBCXX_PURE +# define _GLIBCXX_PURE __attribute__ ((__pure__)) +#endif + +#ifndef _GLIBCXX_CONST +# define _GLIBCXX_CONST __attribute__ ((__const__)) +#endif + +#ifndef _GLIBCXX_NORETURN +# define _GLIBCXX_NORETURN __attribute__ ((__noreturn__)) +#endif + +#ifndef _GLIBCXX_NOTHROW +# ifdef __cplusplus +# define _GLIBCXX_NOTHROW throw() +# else +# define _GLIBCXX_NOTHROW __attribute__((__nothrow__)) +# endif +#endif + +// Macros for visibility attributes. +// _GLIBCXX_HAVE_ATTRIBUTE_VISIBILITY +// _GLIBCXX_VISIBILITY +#define _GLIBCXX_HAVE_ATTRIBUTE_VISIBILITY + +#if _GLIBCXX_HAVE_ATTRIBUTE_VISIBILITY +# define _GLIBCXX_VISIBILITY(V) __attribute__ ((__visibility__ (#V))) +#else +// If this is not supplied by the OS-specific or CPU-specific +// headers included below, it will be defined to an empty default. +# define _GLIBCXX_VISIBILITY(V) _GLIBCXX_PSEUDO_VISIBILITY(V) +#endif + +// Macros for deprecated attributes. +// _GLIBCXX_USE_DEPRECATED +// _GLIBCXX_DEPRECATED +#ifndef _GLIBCXX_USE_DEPRECATED +# define _GLIBCXX_USE_DEPRECATED 1 +#endif + +#if defined(__DEPRECATED) && defined(__GXX_EXPERIMENTAL_CXX0X__) +# define _GLIBCXX_DEPRECATED __attribute__ ((__deprecated__)) +#else +# define _GLIBCXX_DEPRECATED +#endif + +#if __cplusplus + +// Macro for constexpr, to support in mixed 03/0x mode. +#ifndef _GLIBCXX_CONSTEXPR +# ifdef __GXX_EXPERIMENTAL_CXX0X__ +# define _GLIBCXX_CONSTEXPR constexpr +# define _GLIBCXX_USE_CONSTEXPR constexpr +# else +# define _GLIBCXX_CONSTEXPR +# define _GLIBCXX_USE_CONSTEXPR const +# endif +#endif + +// Macro for extern template, ie controling template linkage via use +// of extern keyword on template declaration. As documented in the g++ +// manual, 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. +// Special case: _GLIBCXX_EXTERN_TEMPLATE == -1 disallows extern +// templates only in basic_string, thus activating its debug-mode +// checks even at -O0. +#define _GLIBCXX_EXTERN_TEMPLATE + +/* + Outline of libstdc++ namespaces. + + namespace std + { + namespace __debug { } + namespace __parallel { } + namespace __profile { } + namespace __cxx1998 { } + + namespace __detail { } + + namespace rel_ops { } + + namespace tr1 + { + namespace placeholders { } + namespace regex_constants { } + namespace __detail { } + } + + namespace decimal { } + + namespace chrono { } + namespace placeholders { } + namespace regex_constants { } + namespace this_thread { } + } + + namespace abi { } + + namespace __gnu_cxx + { + namespace __detail { } + } + + For full details see: + http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/namespaces.html +*/ +namespace std +{ + typedef __SIZE_TYPE__ size_t; + typedef __PTRDIFF_TYPE__ ptrdiff_t; + +#ifdef __GXX_EXPERIMENTAL_CXX0X__ + typedef decltype(nullptr) nullptr_t; +#endif +} + + +// Defined if inline namespaces are used for versioning. +#define _GLIBCXX_INLINE_VERSION + +// Inline namespace for symbol versioning. +#if _GLIBCXX_INLINE_VERSION + +namespace std +{ + inline namespace __7 { } + + namespace rel_ops { inline namespace __7 { } } + + namespace tr1 + { + inline namespace __7 { } + namespace placeholders { inline namespace __7 { } } + namespace regex_constants { inline namespace __7 { } } + namespace __detail { inline namespace __7 { } } + } + + namespace decimal { inline namespace __7 { } } + + namespace chrono { inline namespace __7 { } } + namespace placeholders { inline namespace __7 { } } + namespace regex_constants { inline namespace __7 { } } + namespace this_thread { inline namespace __7 { } } + + namespace __detail { inline namespace __7 { } } + namespace __regex { inline namespace __7 { } } +} + +namespace __gnu_cxx +{ + inline namespace __7 { } + namespace __detail { inline namespace __7 { } } +} +# define _GLIBCXX_BEGIN_NAMESPACE_VERSION namespace __7 { +# define _GLIBCXX_END_NAMESPACE_VERSION } +#else +# define _GLIBCXX_BEGIN_NAMESPACE_VERSION +# define _GLIBCXX_END_NAMESPACE_VERSION +#endif + + +// Inline namespaces for special modes: debug, parallel, profile. +#if defined(_GLIBCXX_DEBUG) || defined(_GLIBCXX_PARALLEL) \ + || defined(_GLIBCXX_PROFILE) +namespace std +{ + // Non-inline namespace for components replaced by alternates in active mode. + namespace __cxx1998 + { +#if _GLIBCXX_INLINE_VERSION + inline namespace __7 { } +#endif + } + + // Inline namespace for debug mode. +# ifdef _GLIBCXX_DEBUG + inline namespace __debug { } +# endif + + // Inline namespaces for parallel mode. +# ifdef _GLIBCXX_PARALLEL + inline namespace __parallel { } +# endif + + // Inline namespaces for profile mode +# ifdef _GLIBCXX_PROFILE + inline namespace __profile { } +# endif +} + +// Check for invalid usage and unsupported mixed-mode use. +# if defined(_GLIBCXX_DEBUG) && defined(_GLIBCXX_PARALLEL) +# error illegal use of multiple inlined namespaces +# endif +# if defined(_GLIBCXX_PROFILE) && defined(_GLIBCXX_DEBUG) +# error illegal use of multiple inlined namespaces +# endif +# if defined(_GLIBCXX_PROFILE) && defined(_GLIBCXX_PARALLEL) +# error illegal use of multiple inlined namespaces +# endif + +// Check for invalid use due to lack for weak symbols. +# if __NO_INLINE__ && !__GXX_WEAK__ +# warning currently using inlined namespace mode which may fail \ + without inlining due to lack of weak symbols +# endif +#endif + +// Macros for namespace scope. Either namespace std:: or the name +// of some nested namespace within it corresponding to the active mode. +// _GLIBCXX_STD_A +// _GLIBCXX_STD_C +// +// Macros for opening/closing conditional namespaces. +// _GLIBCXX_BEGIN_NAMESPACE_ALGO +// _GLIBCXX_END_NAMESPACE_ALGO +// _GLIBCXX_BEGIN_NAMESPACE_CONTAINER +// _GLIBCXX_END_NAMESPACE_CONTAINER +#if defined(_GLIBCXX_DEBUG) || defined(_GLIBCXX_PROFILE) +# define _GLIBCXX_STD_C __cxx1998 +# define _GLIBCXX_BEGIN_NAMESPACE_CONTAINER \ + namespace _GLIBCXX_STD_C { _GLIBCXX_BEGIN_NAMESPACE_VERSION +# define _GLIBCXX_END_NAMESPACE_CONTAINER \ + } _GLIBCXX_END_NAMESPACE_VERSION +# undef _GLIBCXX_EXTERN_TEMPLATE +# define _GLIBCXX_EXTERN_TEMPLATE -1 +#endif + +#ifdef _GLIBCXX_PARALLEL +# define _GLIBCXX_STD_A __cxx1998 +# define _GLIBCXX_BEGIN_NAMESPACE_ALGO \ + namespace _GLIBCXX_STD_A { _GLIBCXX_BEGIN_NAMESPACE_VERSION +# define _GLIBCXX_END_NAMESPACE_ALGO \ + } _GLIBCXX_END_NAMESPACE_VERSION +#endif + +#ifndef _GLIBCXX_STD_A +# define _GLIBCXX_STD_A std +#endif + +#ifndef _GLIBCXX_STD_C +# define _GLIBCXX_STD_C std +#endif + +#ifndef _GLIBCXX_BEGIN_NAMESPACE_ALGO +# define _GLIBCXX_BEGIN_NAMESPACE_ALGO +#endif + +#ifndef _GLIBCXX_END_NAMESPACE_ALGO +# define _GLIBCXX_END_NAMESPACE_ALGO +#endif + +#ifndef _GLIBCXX_BEGIN_NAMESPACE_CONTAINER +# define _GLIBCXX_BEGIN_NAMESPACE_CONTAINER +#endif + +#ifndef _GLIBCXX_END_NAMESPACE_CONTAINER +# define _GLIBCXX_END_NAMESPACE_CONTAINER +#endif + +// GLIBCXX_ABI Deprecated +// Define if compatibility should be provided for -mlong-double-64. +#undef _GLIBCXX_LONG_DOUBLE_COMPAT + +// Inline namespace for long double 128 mode. +#if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__ +namespace std +{ + inline namespace __gnu_cxx_ldbl128 { } +} +# define _GLIBCXX_NAMESPACE_LDBL __gnu_cxx_ldbl128:: +# define _GLIBCXX_BEGIN_NAMESPACE_LDBL namespace __gnu_cxx_ldbl128 { +# define _GLIBCXX_END_NAMESPACE_LDBL } +#else +# define _GLIBCXX_NAMESPACE_LDBL +# define _GLIBCXX_BEGIN_NAMESPACE_LDBL +# define _GLIBCXX_END_NAMESPACE_LDBL +#endif + +// Assert. +#if !defined(_GLIBCXX_DEBUG) && !defined(_GLIBCXX_PARALLEL) +# define __glibcxx_assert(_Condition) +#else +namespace std +{ + // Avoid the use of assert, because we're trying to keep the <cassert> + // include out of the mix. + inline void + __replacement_assert(const char* __file, int __line, + const char* __function, const char* __condition) + { + __builtin_printf("%s:%d: %s: Assertion '%s' failed.\n", __file, __line, + __function, __condition); + __builtin_abort(); + } +} +#define __glibcxx_assert(_Condition) \ + do \ + { \ + if (! (_Condition)) \ + std::__replacement_assert(__FILE__, __LINE__, __PRETTY_FUNCTION__, \ + #_Condition); \ + } while (false) +#endif + +// Macros for race detectors. +// _GLIBCXX_SYNCHRONIZATION_HAPPENS_BEFORE(A) and +// _GLIBCXX_SYNCHRONIZATION_HAPPENS_AFTER(A) should be used to explain +// atomic (lock-free) synchronization to race detectors: +// the race detector will infer a happens-before arc from the former to the +// latter when they share the same argument pointer. +// +// The most frequent use case for these macros (and the only case in the +// current implementation of the library) is atomic reference counting: +// void _M_remove_reference() +// { +// _GLIBCXX_SYNCHRONIZATION_HAPPENS_BEFORE(&this->_M_refcount); +// if (__gnu_cxx::__exchange_and_add_dispatch(&this->_M_refcount, -1) <= 0) +// { +// _GLIBCXX_SYNCHRONIZATION_HAPPENS_AFTER(&this->_M_refcount); +// _M_destroy(__a); +// } +// } +// The annotations in this example tell the race detector that all memory +// accesses occurred when the refcount was positive do not race with +// memory accesses which occurred after the refcount became zero. +#ifndef _GLIBCXX_SYNCHRONIZATION_HAPPENS_BEFORE +# define _GLIBCXX_SYNCHRONIZATION_HAPPENS_BEFORE(A) +#endif +#ifndef _GLIBCXX_SYNCHRONIZATION_HAPPENS_AFTER +# define _GLIBCXX_SYNCHRONIZATION_HAPPENS_AFTER(A) +#endif + +// Macros for C linkage: define extern "C" linkage only when using C++. +# define _GLIBCXX_BEGIN_EXTERN_C extern "C" { +# define _GLIBCXX_END_EXTERN_C } + +#else // !__cplusplus +# define _GLIBCXX_BEGIN_EXTERN_C +# define _GLIBCXX_END_EXTERN_C +#endif + + +// First includes. + +// Pick up any OS-specific definitions. +#include <bits/os_defines.h> + +// Pick up any CPU-specific definitions. +#include <bits/cpu_defines.h> + +// If platform uses neither visibility nor psuedo-visibility, +// specify empty default for namespace annotation macros. +#ifndef _GLIBCXX_PSEUDO_VISIBILITY +# define _GLIBCXX_PSEUDO_VISIBILITY(V) +#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 settings discovered at configure time follow. |