commit f61ca1eeda9cf2427047d83febe6fac1fbb1e84e
author Chris Lattner <sabre@nondot.org> Sun Oct 26 19:20:47 2008 +0000
committer Chris Lattner <sabre@nondot.org> Sun Oct 26 19:20:47 2008 +0000
tree 6534ae3c87c81a8508bf7c7170267acb98e71497
parent 629b52697b1accd87c6ce5a658dfac865968636c

fix PR2953, an off-by-one error handling formatted i/o. 
Thanks to Török Edwin for the awesome reduced testcase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58199 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Support/raw_ostream.cpp

diff --git a/lib/Support/raw_ostream.cpp b/lib/Support/raw_ostream.cpp
index a4c2936..8c704cb 100644
--- a/lib/Support/raw_ostream.cpp
+++ b/lib/Support/raw_ostream.cpp
@@ -175,7 +175,7 @@
     unsigned BytesUsed = Fmt.print(&V[0], NextBufferSize);
     
     // If BytesUsed fit into the vector, we win.
-    if (BytesUsed < NextBufferSize)
+    if (BytesUsed <= NextBufferSize)
       return write(&V[0], BytesUsed);
     
     // Otherwise, try again with a new size.