commit 8361d4c51bd191f29dca50f5320e9c36955887c4
author Zhongxing Xu <xuzhongxing@gmail.com> Mon Nov 24 02:30:48 2008 +0000
committer Zhongxing Xu <xuzhongxing@gmail.com> Mon Nov 24 02:30:48 2008 +0000
tree d9759e7f06f59607861fed08511a7145c1c3a720
parent bf900755d01fa5e497fd918235c143a7801f436f

Add a comment about the signedness.

llvm-svn: 59932

clang/lib/Analysis/RegionStore.cpp

diff --git a/clang/lib/Analysis/RegionStore.cpp b/clang/lib/Analysis/RegionStore.cpp
index cdc8b27..73b2595 100644
--- a/clang/lib/Analysis/RegionStore.cpp
+++ b/clang/lib/Analysis/RegionStore.cpp
@@ -273,6 +273,8 @@
 
   if (const StringRegion* SR = dyn_cast<StringRegion>(R)) {
     const StringLiteral* Str = SR->getStringLiteral();
+    // We intentionally made the size value signed because it participates in 
+    // operations with signed indices.
     return NonLoc::MakeVal(getBasicVals(), Str->getByteLength(), false);
   }