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henrike@webrtc.org0e118e72013-07-10 00:45:36 +00001/*
2 * libjingle
3 * Copyright 2004--2010, Google Inc.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice,
9 * this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation
12 * and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#ifndef TALK_BASE_VERSIONPARSING_H_
29#define TALK_BASE_VERSIONPARSING_H_
30
31#include <string>
32
33namespace talk_base {
34
35// Parses a version string into an array. "num_expected_segments" must be the
36// number of numerical segments that the version is expected to have (e.g.,
37// "1.1.2.0" has 4). "version" must be an array of that length to hold the
38// parsed numbers.
39// Returns "true" iff successful.
40bool ParseVersionString(const std::string& version_str,
41 int num_expected_segments,
42 int version[]);
43
44// Computes the lexicographical order of two versions. The return value
45// indicates the order in the standard way (e.g., see strcmp()).
46int CompareVersions(const int version1[],
47 const int version2[],
48 int num_segments);
49
50} // namespace talk_base
51
52#endif // TALK_BASE_VERSIONPARSING_H_