42 lines
1022 B
C++
42 lines
1022 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/config.hpp>
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#ifdef BOOST_NO_CXX11_VARIADIC_MACROS
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# error "variadic macros required"
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#else
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#include <boost/local_function.hpp>
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#include <boost/detail/lightweight_test.hpp>
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#include <algorithm>
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//[add_template
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template<typename T>
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T total(const T& x, const T& y, const T& z) {
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T sum = T(), factor = 10;
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// Must use the `..._TPL` macros within templates.
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T BOOST_LOCAL_FUNCTION_TPL(const bind factor, bind& sum, T num) {
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return sum += factor * num;
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} BOOST_LOCAL_FUNCTION_NAME_TPL(add)
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add(x);
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T nums[2]; nums[0] = y; nums[1] = z;
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std::for_each(nums, nums + 2, add);
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return sum;
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}
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//]
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int main(void) {
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BOOST_TEST(total(1, 2, 3) == 60);
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return boost::report_errors();
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}
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#endif // VARIADIC_MACROS
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