Adds trunk/talk folder of revision 359 from libjingles google code to
trunk/talk
git-svn-id: http://webrtc.googlecode.com/svn/trunk@4318 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/talk/base/versionparsing.cc b/talk/base/versionparsing.cc
new file mode 100644
index 0000000..03f3dec
--- /dev/null
+++ b/talk/base/versionparsing.cc
@@ -0,0 +1,74 @@
+/*
+ * libjingle
+ * Copyright 2004--2010, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "talk/base/versionparsing.h"
+
+#include <cstdlib>
+
+namespace talk_base {
+
+bool ParseVersionString(const std::string& version_str,
+ int num_expected_segments,
+ int version[]) {
+ size_t pos = 0;
+ for (int i = 0;;) {
+ size_t dot_pos = version_str.find('.', pos);
+ size_t n;
+ if (dot_pos == std::string::npos) {
+ // npos here is a special value meaning "to the end of the string"
+ n = std::string::npos;
+ } else {
+ n = dot_pos - pos;
+ }
+
+ version[i] = atoi(version_str.substr(pos, n).c_str());
+
+ if (++i >= num_expected_segments) break;
+
+ if (dot_pos == std::string::npos) {
+ // Previous segment was not terminated by a dot, but there's supposed to
+ // be more segments, so that's an error.
+ return false;
+ }
+ pos = dot_pos + 1;
+ }
+ return true;
+}
+
+int CompareVersions(const int version1[],
+ const int version2[],
+ int num_segments) {
+ for (int i = 0; i < num_segments; ++i) {
+ int diff = version1[i] - version2[i];
+ if (diff != 0) {
+ return diff;
+ }
+ }
+ return 0;
+}
+
+} // namespace talk_base