Driver: Move GetReleaseVersion to static Driver::GetReleaseVersion method.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67754 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/Driver.cpp b/lib/Driver/Driver.cpp
index dc303ad..1562fde 100644
--- a/lib/Driver/Driver.cpp
+++ b/lib/Driver/Driver.cpp
@@ -1029,3 +1029,42 @@
return true;
}
+
+/// GetReleaseVersion - Parse (([0-9]+)(.([0-9]+)(.([0-9]+)?))?)? and
+/// return the grouped values as integers. Numbers which are not
+/// provided are set to 0.
+///
+/// \return True if the entire string was parsed (9.2), or all groups
+/// were parsed (10.3.5extrastuff).
+bool Driver::GetReleaseVersion(const char *Str, unsigned &Major,
+ unsigned &Minor, unsigned &Micro,
+ bool &HadExtra) {
+ HadExtra = false;
+
+ Major = Minor = Micro = 0;
+ if (*Str == '\0')
+ return true;
+
+ char *End;
+ Major = (unsigned) strtol(Str, &End, 10);
+ if (*Str != '\0' && *End == '\0')
+ return true;
+ if (*End != '.')
+ return false;
+
+ Str = End+1;
+ Minor = (unsigned) strtol(Str, &End, 10);
+ if (*Str != '\0' && *End == '\0')
+ return true;
+ if (*End != '.')
+ return false;
+
+ Str = End+1;
+ Micro = (unsigned) strtol(Str, &End, 10);
+ if (*Str != '\0' && *End == '\0')
+ return true;
+ if (Str == End)
+ return false;
+ HadExtra = true;
+ return true;
+}