forked from boostorg/utility
split off indirect and transform tests into separate files
[SVN r9505]
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54
transform_iterator_test.cpp
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54
transform_iterator_test.cpp
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// (C) Copyright Jeremy Siek 1999. Permission to copy, use, modify,
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// sell and distribute this software is granted provided this
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// copyright notice appears in all copies. This software is provided
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// "as is" without express or implied warranty, and with no claim as
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// to its suitability for any purpose.
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// Revision History
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// 08 Mar 2001 Jeremy Siek
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// Moved test of transform iterator into its own file. It to
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// to be in iterator_adaptor_test.cpp.
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#include <boost/config.hpp>
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#include <iostream>
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#include <algorithm>
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#include <boost/iterator_adaptors.hpp>
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#include <boost/pending/iterator_tests.hpp>
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struct mult_functor {
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typedef int result_type;
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typedef int argument_type;
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// Functors used with transform_iterator must be
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// DefaultConstructible, as the transform_iterator must be
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// DefaultConstructible to satisfy the requirements for
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// TrivialIterator.
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mult_functor() { }
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mult_functor(int aa) : a(aa) { }
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int operator()(int b) const { return a * b; }
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int a;
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};
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int
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main()
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{
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const int N = 10;
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// Borland is getting confused about typedef's and constructors here
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// Test transform_iterator
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{
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int x[N], y[N];
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for (int k = 0; k < N; ++k)
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x[k] = k;
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std::copy(x, x + N, y);
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for (int k2 = 0; k2 < N; ++k2)
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x[k2] = x[k2] * 2;
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boost::transform_iterator_generator<mult_functor, int*>::type i(y, mult_functor(2));
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boost::input_iterator_test(i, x[0], x[1]);
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boost::input_iterator_test(boost::make_transform_iterator(&y[0], mult_functor(2)), x[0], x[1]);
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}
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std::cout << "test successful " << std::endl;
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return 0;
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}
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