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authorChris Lattner <sabre@nondot.org>2008-04-23 03:21:50 +0000
committerChris Lattner <sabre@nondot.org>2008-04-23 03:21:50 +0000
commitc66d0aa934f2afd412f50881a5e959bb8582cf14 (patch)
tree0c9100179126071fa635eaad54825bd986163f25 /lib/Rewrite/RewriteRope.cpp
parent688738fcf89b20504369b90995757c051a59f7a2 (diff)
fix a rewriter crash on zero length files.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50126 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Rewrite/RewriteRope.cpp')
-rw-r--r--lib/Rewrite/RewriteRope.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/Rewrite/RewriteRope.cpp b/lib/Rewrite/RewriteRope.cpp
index db55aa1cd4..7ee9fcced2 100644
--- a/lib/Rewrite/RewriteRope.cpp
+++ b/lib/Rewrite/RewriteRope.cpp
@@ -741,6 +741,7 @@ void RopePieceBTree::erase(unsigned Offset, unsigned NumBytes) {
/// allocation instead of doing tons of tiny allocations.
RopePiece RewriteRope::MakeRopeString(const char *Start, const char *End) {
unsigned Len = End-Start;
+ assert(Len && "Zero length RopePiece is invalid!");
// If we have space for this string in the current alloc buffer, use it.
if (AllocOffs+Len <= AllocChunkSize) {