forked from boostorg/iterator
Move generator_iterator doc/test files, update test/Jamfile.v2.
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63
test/generator_iterator_test.cpp
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63
test/generator_iterator_test.cpp
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//
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// Copyright 2014 Peter Dimov
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//
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// Distributed under the Boost Software License, Version 1.0.
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// See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt
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//
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#include <boost/generator_iterator.hpp>
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#include <boost/detail/lightweight_test.hpp>
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#include <algorithm>
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class X
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{
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private:
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int v;
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public:
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typedef int result_type;
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X(): v( 0 )
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{
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}
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int operator()()
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{
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return ++v;
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}
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};
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template<class InputIterator, class Size, class OutputIterator> OutputIterator copy_n( InputIterator first, Size n, OutputIterator result )
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{
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while( n-- > 0 )
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{
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*result++ = *first++;
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}
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return result;
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}
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void copy_test()
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{
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X x;
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boost::generator_iterator<X> in( &x );
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int const N = 4;
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int v[ N ] = { 0 };
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::copy_n( in, 4, v );
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BOOST_TEST_EQ( v[0], 1 );
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BOOST_TEST_EQ( v[1], 2 );
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BOOST_TEST_EQ( v[2], 3 );
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BOOST_TEST_EQ( v[3], 4 );
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}
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int main()
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{
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copy_test();
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return boost::report_errors();
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}
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