| OLD | NEW |
| (Empty) |
| 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 #include "webrtc/base/versionparsing.h" | |
| 12 | |
| 13 #include <stdlib.h> | |
| 14 | |
| 15 namespace rtc { | |
| 16 | |
| 17 bool ParseVersionString(const std::string& version_str, | |
| 18 int num_expected_segments, | |
| 19 int version[]) { | |
| 20 size_t pos = 0; | |
| 21 for (int i = 0;;) { | |
| 22 size_t dot_pos = version_str.find('.', pos); | |
| 23 size_t n; | |
| 24 if (dot_pos == std::string::npos) { | |
| 25 // npos here is a special value meaning "to the end of the string" | |
| 26 n = std::string::npos; | |
| 27 } else { | |
| 28 n = dot_pos - pos; | |
| 29 } | |
| 30 | |
| 31 version[i] = atoi(version_str.substr(pos, n).c_str()); | |
| 32 | |
| 33 if (++i >= num_expected_segments) break; | |
| 34 | |
| 35 if (dot_pos == std::string::npos) { | |
| 36 // Previous segment was not terminated by a dot, but there's supposed to | |
| 37 // be more segments, so that's an error. | |
| 38 return false; | |
| 39 } | |
| 40 pos = dot_pos + 1; | |
| 41 } | |
| 42 return true; | |
| 43 } | |
| 44 | |
| 45 int CompareVersions(const int version1[], | |
| 46 const int version2[], | |
| 47 int num_segments) { | |
| 48 for (int i = 0; i < num_segments; ++i) { | |
| 49 int diff = version1[i] - version2[i]; | |
| 50 if (diff != 0) { | |
| 51 return diff; | |
| 52 } | |
| 53 } | |
| 54 return 0; | |
| 55 } | |
| 56 | |
| 57 } // namespace rtc | |
| OLD | NEW |