73 lines
2.5 KiB
C++
73 lines
2.5 KiB
C++
/**************************************************************************
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*
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* equal.cpp - Example program for comparing two ranges for equivalence.
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*
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* $Id: equal.cpp 550991 2007-06-26 23:58:07Z sebor $
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*
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***************************************************************************
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* permissions and limitations under the License.
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*
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* Copyright 1994-2006 Rogue Wave Software.
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*
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**************************************************************************/
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#include <algorithm> // for equal
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#include <functional> // for equal_to
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#include <ios> // for boolalpha
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#include <iostream> // for cout, endl
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#include <iterator> // for ostream_iterator
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#include <vector> // for vector
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#include <examples.h>
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int main ()
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{
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// Typedef for convenience.
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typedef std::vector<int, std::allocator<int> > Vector;
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typedef std::ostream_iterator <Vector::value_type,
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char,
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std::char_traits<char> > os_iter;
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const Vector::value_type a1[] = { 1, 2, 3, 4 };
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const Vector::value_type a2[] = { 1, 2, 4, 3 };
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// Set up two vectors.
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const Vector v1 (a1, a1 + sizeof a1 / sizeof *a1);
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const Vector v2 (a2, a2 + sizeof a2 / sizeof *a2);
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// Check for equality.
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bool same = std::equal (v1.begin (), v1.end (), v2.begin ());
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same = same && std::equal (v1.begin (), v1.end (), v2.begin (),
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std::equal_to<Vector::value_type>());
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// Output the sequences.
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std::cout << "{ ";
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std::copy (v1.begin (), v1.end (), os_iter (std::cout, " "));
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std::cout << "} == { ";
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std::copy (v2.begin (), v2.end (), os_iter (std::cout, " "));
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// Output the result.
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std::cout << "} --> " << std::boolalpha << same << std::endl;
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return 0;
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}
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