31 lines
734 B
C++
31 lines
734 B
C++
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// Copyright (C) 2008-2018 Lorenzo Caminiti
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// Distributed under the Boost Software License, Version 1.0 (see accompanying
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// file LICENSE_1_0.txt or a copy at http://www.boost.org/LICENSE_1_0.txt).
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// See: http://www.boost.org/doc/libs/release/libs/contract/doc/html/index.html
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//[n1962_sum
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#include <boost/contract.hpp>
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#include <cassert>
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int sum(int count, int* array) {
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int result;
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boost::contract::check c = boost::contract::function()
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.precondition([&] {
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BOOST_CONTRACT_ASSERT(count % 4 == 0);
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})
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;
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result = 0;
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for(int i = 0; i < count; ++i) result += array[i];
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return result;
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}
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int main() {
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int a[4] = {1, 2, 3, 4};
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assert(sum(4, a) == 10);
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return 0;
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}
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//]
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