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/*
* Copyright 2009, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
// This file declares STL functional classes in a cross-compiler way.
#ifndef O3D_BASE_CROSS_STD_FUNCTIONAL_H_
#define O3D_BASE_CROSS_STD_FUNCTIONAL_H_
#include <build/build_config.h>
#if defined(COMPILER_GCC)
#include <ext/functional>
namespace o3d {
namespace base {
using __gnu_cxx::select1st;
using __gnu_cxx::select2nd;
} // namespace base
} // namespace o3d
#elif defined(COMPILER_MSVC)
#include <functional>
#include <utility>
namespace o3d {
namespace base {
template <class Pair>
class select1st : public std::unary_function<Pair, typename Pair::first_type> {
public:
const result_type &operator()(const argument_type &value) const {
return value.first;
}
};
template <class Pair>
class select2nd : public std::unary_function<Pair, typename Pair::second_type> {
public:
const result_type &operator()(const argument_type &value) const {
return value.second;
}
};
} // namespace base
} // namespace o3d
#else
#error Unsupported compiler
#endif
#endif // O3D_BASE_CROSS_STD_FUNCTIONAL_H_
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