1 /* 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 33 namespace 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. 40 bool 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()). 46 int CompareVersions(const int version1[], 47 const int version2[], 48 int num_segments); 49 50 } // namespace talk_base 51 52 #endif // TALK_BASE_VERSIONPARSING_H_ 53