Subversion Repositories openrisc

// This file is part of the uSTL library, an STL implementation.

//

// Copyright (c) 2005-2009 by Mike Sharov <msharov@users.sourceforge.net>

// This file is free software, distributed under the MIT License.

#ifndef UPAIR_H_7DC08F1B7FECF8AE6856D84C3B617A75

#define UPAIR_H_7DC08F1B7FECF8AE6856D84C3B617A75

#include "utypes.h"

namespace ustl {

/// \class pair upair.h ustl.h

/// \ingroup AssociativeContainers

///

/// \brief Container for two values.

///

template <typename T1, typename T2>

class pair {

public:

    typedef T1          first_type;

    typedef T2          second_type;

public:

    /// Default constructor.

    inline pair (void)                          : first (T1()), second (T2()) {}

    /// Initializes members with \p a, and \p b.

    inline pair (const T1& a, const T2& b)      : first (a), second (b) {}

    inline pair&        operator= (const pair<T1, T2>& p2) { first = p2.first; second = p2.second; return (*this); }

    template <typename T3, typename T4>

    inline pair&        operator= (const pair<T3, T4>& p2) { first = p2.first; second = p2.second; return (*this); }

public:

    first_type          first;

    second_type         second;

};

/// Compares both values of \p p1 to those of \p p2.

template <typename T1, typename T2>

inline bool operator== (const pair<T1,T2>& p1, const pair<T1,T2>& p2)

{

    return (p1.first == p2.first && p1.second == p2.second);

}

/// Compares both values of \p p1 to those of \p p2.

template <typename T1, typename T2>

bool operator< (const pair<T1,T2>& p1, const pair<T1,T2>& p2)

{

    return (p1.first < p2.first || (p1.first == p2.first && p1.second < p2.second));

}

/// Returns a pair object with (a,b)

template <typename T1, typename T2>

inline pair<T1,T2> make_pair (const T1& a, const T2& b)

{

    return (pair<T1,T2> (a, b));

}

} // namespace ustl

#endif