// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <iterator>
#include <map>
#include <string>
#include "scoped_refptr.h"
struct Foo {
int dummy;
};
typedef std::map<std::string, scoped_refptr<const Foo> > MyMap;
class MyIter
: public std::iterator<std::input_iterator_tag, scoped_refptr<const Foo> > {
public:
MyIter() {}
MyIter(const MyIter& other) : it_(other.it_) {}
explicit MyIter(MyMap::const_iterator it) : it_(it) {}
MyIter& operator++() {
++it_;
return *this;
}
const scoped_refptr<const Foo> operator*() { return it_->second; }
bool operator!=(const MyIter& other) { return it_ != other.it_; }
bool operator==(const MyIter& other) { return it_ == other.it_; }
private:
MyMap::const_iterator it_;
};
void TestsAScopedRefptr() {
MyMap map;
map["foo"] = new Foo;
map["bar"] = new Foo;
MyIter my_begin(map.begin());
MyIter my_end(map.end());
for (MyIter it = my_begin; it != my_end; ++it) {
const Foo* item = NULL;
if (*it)
item = *it;
}
}