35 lines
998 B
C++
35 lines
998 B
C++
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// Copyright (C) 2009-2012 Lorenzo Caminiti
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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 a copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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// Home at http://www.boost.org/libs/local_function
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#include <boost/spirit/include/phoenix.hpp>
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#include <boost/detail/lightweight_test.hpp>
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#include <algorithm>
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#include <iostream>
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//[add_phoenix
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int main(void) {
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using boost::phoenix::let;
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using boost::phoenix::local_names::_f;
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using boost::phoenix::cref;
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using boost::phoenix::ref;
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using boost::phoenix::arg_names::_1;
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int sum = 0, factor = 10;
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int nums[] = {1, 2, 3};
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// Passed to template, `factor` by constant, and defined in expression.
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std::for_each(nums, nums + 3, let(_f = cref(factor))[
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// Unfortunately, body cannot use C++ statement syntax.
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ref(sum) += _f * _1, _1 // Access `sum` by reference.
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]);
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BOOST_TEST(sum == 60);
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return boost::report_errors();
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}
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//]
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