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// (C) Copyright Herve Bronnimann 2004.
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
/*
Revision history:
1 July 2004
Split the code into two headers to lessen dependence on
Boost.tuple. (Herve)
26 June 2004
Added the code for the boost minmax library. (Herve)
*/
#ifndef BOOST_ALGORITHM_MINMAX_HPP
#define BOOST_ALGORITHM_MINMAX_HPP
/* PROPOSED STANDARD EXTENSIONS:
*
* minmax(a, b)
* Effect: (b<a) ? std::make_pair(b,a) : std::make_pair(a,b);
*
* minmax(a, b, comp)
* Effect: comp(b,a) ? std::make_pair(b,a) : std::make_pair(a,b);
*
*/
#include <boost/tuple/tuple.hpp> // for using pairs with boost::cref
#include <boost/ref.hpp>
namespace boost {
template <typename T>
tuple< T const&, T const& >
minmax(T const& a, T const& b) {
return (b<a) ? make_tuple(cref(b),cref(a)) : make_tuple(cref(a),cref(b));
}
template <typename T, class BinaryPredicate>
tuple< T const&, T const& >
minmax(T const& a, T const& b, BinaryPredicate comp) {
return comp(b,a) ? make_tuple(cref(b),cref(a)) : make_tuple(cref(a),cref(b));
}
} // namespace boost
#endif // BOOST_ALGORITHM_MINMAX_HPP