X-Git-Url: http://wagnertech.de/git?a=blobdiff_plain;f=i686-linux-gnu-4.7%2Fusr%2Finclude%2Fc%2B%2B%2F4.7%2Fbits%2Fconcept_check.h;fp=i686-linux-gnu-4.7%2Fusr%2Finclude%2Fc%2B%2B%2F4.7%2Fbits%2Fconcept_check.h;h=9517e5cd7374f87c5769cf19885cfadb73399cad;hb=94df942c2c7bd3457276fe5b7367623cbb8c1302;hp=0000000000000000000000000000000000000000;hpb=4dd7d9155a920895ff7b1cb6b9c9c676aa62000a;p=cross.git diff --git a/i686-linux-gnu-4.7/usr/include/c++/4.7/bits/concept_check.h b/i686-linux-gnu-4.7/usr/include/c++/4.7/bits/concept_check.h new file mode 100644 index 0000000..9517e5c --- /dev/null +++ b/i686-linux-gnu-4.7/usr/include/c++/4.7/bits/concept_check.h @@ -0,0 +1,80 @@ +// Concept-checking control -*- C++ -*- + +// Copyright (C) 2001, 2009, 2010 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 +// . + +/** @file bits/concept_check.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{iterator} + */ + +#ifndef _CONCEPT_CHECK_H +#define _CONCEPT_CHECK_H 1 + +#pragma GCC system_header + +#include + +// All places in libstdc++-v3 where these are used, or /might/ be used, or +// don't need to be used, or perhaps /should/ be used, are commented with +// "concept requirements" (and maybe some more text). So grep like crazy +// if you're looking for additional places to use these. + +// Concept-checking code is off by default unless users turn it on via +// configure options or editing c++config.h. + +#ifndef _GLIBCXX_CONCEPT_CHECKS + +#define __glibcxx_function_requires(...) +#define __glibcxx_class_requires(_a,_b) +#define __glibcxx_class_requires2(_a,_b,_c) +#define __glibcxx_class_requires3(_a,_b,_c,_d) +#define __glibcxx_class_requires4(_a,_b,_c,_d,_e) + +#else // the checks are on + +#include + +// Note that the obvious and elegant approach of +// +//#define glibcxx_function_requires(C) boost::function_requires< boost::C >() +// +// won't work due to concept templates with more than one parameter, e.g., +// BinaryPredicateConcept. The preprocessor tries to split things up on +// the commas in the template argument list. We can't use an inner pair of +// parenthesis to hide the commas, because "boost::(Temp)" isn't +// a valid instantiation pattern. Thus, we steal a feature from C99. + +#define __glibcxx_function_requires(...) \ + __gnu_cxx::__function_requires< __gnu_cxx::__VA_ARGS__ >(); +#define __glibcxx_class_requires(_a,_C) \ + _GLIBCXX_CLASS_REQUIRES(_a, __gnu_cxx, _C); +#define __glibcxx_class_requires2(_a,_b,_C) \ + _GLIBCXX_CLASS_REQUIRES2(_a, _b, __gnu_cxx, _C); +#define __glibcxx_class_requires3(_a,_b,_c,_C) \ + _GLIBCXX_CLASS_REQUIRES3(_a, _b, _c, __gnu_cxx, _C); +#define __glibcxx_class_requires4(_a,_b,_c,_d,_C) \ + _GLIBCXX_CLASS_REQUIRES4(_a, _b, _c, _d, __gnu_cxx, _C); + +#endif // enable/disable + +#endif // _GLIBCXX_CONCEPT_CHECK