1 /*
2  *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
3  *
4  *  Use of this source code is governed by a BSD-style license
5  *  that can be found in the LICENSE file in the root of the source
6  *  tree. An additional intellectual property rights grant can be found
7  *  in the file PATENTS.  All contributing project authors may
8  *  be found in the AUTHORS file in the root of the source tree.
9  */
10 
11 #ifndef WEBRTC_BASE_VERSIONPARSING_H_
12 #define WEBRTC_BASE_VERSIONPARSING_H_
13 
14 #include <string>
15 
16 namespace rtc {
17 
18 // Parses a version string into an array. "num_expected_segments" must be the
19 // number of numerical segments that the version is expected to have (e.g.,
20 // "1.1.2.0" has 4). "version" must be an array of that length to hold the
21 // parsed numbers.
22 // Returns "true" iff successful.
23 bool ParseVersionString(const std::string& version_str,
24                         int num_expected_segments,
25                         int version[]);
26 
27 // Computes the lexicographical order of two versions. The return value
28 // indicates the order in the standard way (e.g., see strcmp()).
29 int CompareVersions(const int version1[],
30                     const int version2[],
31                     int num_segments);
32 
33 }  // namespace rtc
34 
35 #endif  // WEBRTC_BASE_VERSIONPARSING_H_
36