diff options
Diffstat (limited to 'libstdc++-v3/include/ext/functional')
| -rw-r--r-- | libstdc++-v3/include/ext/functional | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/libstdc++-v3/include/ext/functional b/libstdc++-v3/include/ext/functional index 85b944bf61d..f8402c16dc6 100644 --- a/libstdc++-v3/include/ext/functional +++ b/libstdc++-v3/include/ext/functional @@ -1,6 +1,6 @@ // Functional extensions -*- C++ -*- -// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010 +// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010, 2012 // Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free @@ -183,7 +183,13 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION * @addtogroup SGIextensions */ template <class _Tp> - struct identity : public std::_Identity<_Tp> {}; + struct identity +#ifdef __GXX_EXPERIMENTAL_CXX0X__ + : public std::unary_function<_Tp,_Tp>, + public std::_Identity<_Tp> {}; +#else + : public std::_Identity<_Tp> {}; +#endif /** @c select1st and @c select2nd are extensions provided by SGI. Their * @c operator()s @@ -197,11 +203,23 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION */ /// An \link SGIextensions SGI extension \endlink. template <class _Pair> - struct select1st : public std::_Select1st<_Pair> {}; + struct select1st +#ifdef __GXX_EXPERIMENTAL_CXX0X__ + : public std::unary_function<_Pair, typename _Pair::first_type>, + public std::_Select1st<_Pair> {}; +#else + : public std::_Select1st<_Pair> {}; +#endif /// An \link SGIextensions SGI extension \endlink. template <class _Pair> - struct select2nd : public std::_Select2nd<_Pair> {}; + struct select2nd +#ifdef __GXX_EXPERIMENTAL_CXX0X__ + : public std::unary_function<_Pair, typename _Pair::second_type>, + public std::_Select2nd<_Pair> {}; +#else + : public std::_Select2nd<_Pair> {}; +#endif /** @} */ // extension documented next |