93 lines
2.7 KiB
C++
93 lines
2.7 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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#include "no_lambdas.hpp"
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#include <boost/bind.hpp>
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#include <cassert>
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//[no_lambdas_cpp
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iarray::iarray(unsigned max, unsigned count) :
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boost::contract::constructor_precondition<iarray>(boost::bind(
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&iarray::constructor_precondition, max, count)),
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values_(new int[max]), // Member initializations can be here.
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capacity_(max)
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{
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boost::contract::old_ptr<int> old_instances;
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boost::contract::check c = boost::contract::constructor(this)
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.old(boost::bind(&iarray::constructor_old, boost::ref(old_instances)))
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.postcondition(boost::bind(
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&iarray::constructor_postcondition,
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this,
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boost::cref(max),
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boost::cref(count),
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boost::cref(old_instances)
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))
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;
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for(unsigned i = 0; i < count; ++i) values_[i] = int();
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size_ = count;
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++instances_;
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}
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iarray::~iarray() {
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boost::contract::old_ptr<int> old_instances;
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boost::contract::check c = boost::contract::destructor(this)
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.old(boost::bind(&iarray::destructor_old, this,
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boost::ref(old_instances)))
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.postcondition(boost::bind(&iarray::destructor_postcondition,
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boost::cref(old_instances)))
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;
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delete[] values_;
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--instances_;
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}
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void iarray::push_back(int value, boost::contract::virtual_* v) {
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boost::contract::old_ptr<unsigned> old_size;
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boost::contract::check c = boost::contract::public_function(v, this)
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.precondition(boost::bind(&iarray::push_back_precondition, this))
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.old(boost::bind(&iarray::push_back_old, this, boost::cref(v),
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boost::ref(old_size)))
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.postcondition(boost::bind(&iarray::push_back_postcondition, this,
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boost::cref(old_size)))
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;
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values_[size_++] = value;
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}
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unsigned iarray::capacity() const {
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// Check invariants.
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boost::contract::check c = boost::contract::public_function(this);
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return capacity_;
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}
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unsigned iarray::size() const {
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// Check invariants.
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boost::contract::check c = boost::contract::public_function(this);
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return size_;
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}
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int iarray::instances() {
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// Check static invariants.
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boost::contract::check c = boost::contract::public_function<iarray>();
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return instances_;
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}
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int iarray::instances_ = 0;
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//]
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int main() {
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iarray a(3, 2);
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assert(a.capacity() == 3);
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assert(a.size() == 2);
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a.push_back(-123);
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assert(a.size() == 3);
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return 0;
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}
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