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