include/rw/_algobase.cc

/***************************************************************************
 *
 * _algobase.cc - Definitions of out-of-line C++ Standard Library algorithms
 *
 * $Id$
 *
 ***************************************************************************
 *
 * Copyright (c) 1994
 * Hewlett-Packard Company
 *
 * Permission to use, copy, modify, distribute and sell this software
 * and its documentation for any purpose is hereby granted without fee,
 * provided that the above copyright notice appear in all copies and
 * that both that copyright notice and this permission notice appear
 * in supporting documentation.  Hewlett-Packard Company makes no
 * representations about the suitability of this software for any
 * purpose.  It is provided "as is" without express or implied warranty.
 *
 ***************************************************************************
 *
 * Licensed to the Apache Software  Foundation (ASF) under one or more
 * contributor  license agreements.  See  the NOTICE  file distributed
 * with  this  work  for  additional information  regarding  copyright
 * ownership.   The ASF  licenses this  file to  you under  the Apache
 * License, Version  2.0 (the  "License"); you may  not use  this file
 * except in  compliance with the License.   You may obtain  a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the  License is distributed on an  "AS IS" BASIS,
 * WITHOUT  WARRANTIES OR CONDITIONS  OF ANY  KIND, either  express or
 * implied.   See  the License  for  the  specific language  governing
 * permissions and limitations under the License.
 *
 * Copyright 1994-2006 Rogue Wave Software.
 * 
 **************************************************************************/


_RWSTD_NAMESPACE (std) { 


_EXPORT
template <class _InputIter1, class _InputIter2>
bool lexicographical_compare (_InputIter1 __first1, _InputIter1 __last1,
                              _InputIter2 __first2, _InputIter2 __last2)
{
    _RWSTD_ASSERT_RANGE (__first1, __last1);
    _RWSTD_ASSERT_RANGE (__first2, __last2);

    for ( ; ; ++__first2, ++__first1) {

        if (__first1 == __last1)
            return !(__first2 == __last2);

        if (__first2 == __last2 || *__first2 < *__first1)
            break;

        if (*__first1 < *__first2)
            return true;
    }
    return false;
}


_EXPORT
template <class _InputIter1, class _InputIter2, class _Compare>
bool lexicographical_compare (_InputIter1 __first1, _InputIter1 __last1,
                              _InputIter2 __first2, _InputIter2 __last2,
                              _Compare __comp)
{
    _RWSTD_ASSERT_RANGE (__first1, __last1);
    _RWSTD_ASSERT_RANGE (__first2, __last2);

    for ( ; ; ++__first2, ++__first1) {

        if (__first1 == __last1)
            return !(__first2 == __last2);

        if (__first2 == __last2 || !(__comp (*__first2, *__first1) == false))
            break;

        if (!(__comp (*__first1, *__first2) == false))
            return true;
    }

    return false;
}


}   // namespace std