r180740 - [analyzer] Remove comparePath's dependency on subscript operator.

[Ted Kremenek]

Author: kremenek
Date: Mon Apr 29 17:38:22 2013
New Revision: 180740

URL: http://llvm.org/viewvc/llvm-project?rev=180740&view=rev
Log:
[analyzer] Remove comparePath's dependency on subscript operator.

Modified:
    cfe/trunk/lib/StaticAnalyzer/Core/PathDiagnostic.cpp

Modified: cfe/trunk/lib/StaticAnalyzer/Core/PathDiagnostic.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/StaticAnalyzer/Core/PathDiagnostic.cpp?rev=180740&r1=180739&r2=180740&view=diff
==============================================================================
--- cfe/trunk/lib/StaticAnalyzer/Core/PathDiagnostic.cpp (original)
+++ cfe/trunk/lib/StaticAnalyzer/Core/PathDiagnostic.cpp Mon Apr 29 17:38:22 2013
@@ -297,11 +297,16 @@ static Optional<bool> comparePiece(const
 static Optional<bool> comparePath(const PathPieces &X, const PathPieces &Y) {
   if (X.size() != Y.size())
     return X.size() < Y.size();
-  for (unsigned i = 0, n = X.size(); i != n; ++i) {
-    Optional<bool> b = comparePiece(*X[i], *Y[i]);
+
+  PathPieces::const_iterator X_I = X.begin(), X_end = X.end();
+  PathPieces::const_iterator Y_I = Y.begin(), Y_end = Y.end();
+
+  for ( ; X_I != X_end && Y_I != Y_end; ++X_I, ++Y_I) {
+    Optional<bool> b = comparePiece(**X_I, **Y_I);
     if (b.hasValue())
       return b.getValue();
   }
+
   return None;
 }