Seastar
High performance C++ framework for concurrent servers
All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Modules Pages
transform_iterator.hh
1/*
2 * This file is open source software, licensed to you under the terms
3 * of the Apache License, Version 2.0 (the "License"). See the NOTICE file
4 * distributed with this work for additional information regarding copyright
5 * ownership. You may not use this file except in compliance with the License.
6 *
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing,
12 * software distributed under the License is distributed on an
13 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
14 * KIND, either express or implied. See the License for the
15 * specific language governing permissions and limitations
16 * under the License.
17 */
18/*
19 * Copyright (C) 2014 Cloudius Systems, Ltd.
20 */
21
22#pragma once
23
24namespace seastar {
25
26template <typename Iterator, typename Func>
28 Iterator _i;
29 Func _f;
30public:
31 transform_iterator(Iterator i, Func f) : _i(i), _f(f) {}
32 auto operator*() { return _f(*_i); }
33 transform_iterator& operator++() {
34 ++_i;
35 return *this;
36 }
37 transform_iterator operator++(int) {
38 transform_iterator ret(*this);
39 _i++;
40 return ret;
41 }
42 bool operator==(const transform_iterator& x) const {
43 return _i == x._i;
44 }
45 bool operator!=(const transform_iterator& x) const {
46 return !operator==(x);
47 }
48};
49
50template <typename Iterator, typename Func>
51inline
53make_transform_iterator(Iterator i, Func f) {
55}
56
57}
Definition: transform_iterator.hh:27
Seastar API namespace.
Definition: abort_on_ebadf.hh:26