67 lines
1.8 KiB
C++
67 lines
1.8 KiB
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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// Test assertions skipped when operations to check them missing (e.g., `==`).
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// C++17 warning from Boost.Bind.
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#define _SILENCE_CXX17_ADAPTOR_TYPEDEFS_DEPRECATION_WARNING
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#include <boost/contract/function.hpp>
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#include <boost/contract/check.hpp>
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#include <boost/contract/assert.hpp>
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#include <boost/contract/call_if.hpp>
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#include <boost/bind.hpp>
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#include <boost/type_traits/has_equal_to.hpp>
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#include <boost/detail/lightweight_test.hpp>
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#include <functional>
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#include <vector>
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unsigned equal_skips;
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template<typename T>
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void push_back(std::vector<T>& vect, T const& value) {
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boost::contract::check c = boost::contract::function()
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.postcondition([&] {
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BOOST_CONTRACT_ASSERT(
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boost::contract::call_if<boost::has_equal_to<T> >(
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boost::bind(std::equal_to<T>(), boost::cref(vect.back()),
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boost::cref(value))
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// Explicit bool return and [&] needed for MSVC10 lambdas.
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).else_([&] () -> bool { ++equal_skips; return true; })
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);
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})
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;
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vect.push_back(value);
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}
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struct j { // Type without operator==.
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explicit j(int /* i */) {}
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};
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int main() {
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std::vector<int> vi;
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equal_skips = 0;
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push_back(vi, 123);
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BOOST_TEST_EQ(equal_skips, 0);
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unsigned const cnt =
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#ifndef BOOST_CONTRACT_NO_POSTCONDITIONS
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1
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#else
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0
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#endif
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;
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j jj(456);
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std::vector<j> vj;
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equal_skips = 0;
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push_back(vj, jj);
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BOOST_TEST_EQ(equal_skips, cnt);
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return boost::report_errors();
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}
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