[llvm-commits] [llvm] r78926 - /llvm/trunk/lib/Support/raw_ostream.cpp

[Dan Gohman]

Author: djg
Date: Thu Aug 13 13:38:15 2009
New Revision: 78926

URL: http://llvm.org/viewvc/llvm-project?rev=78926&view=rev
Log:
Add an assert to check copy_to_buffer's precondition.

Modified:
    llvm/trunk/lib/Support/raw_ostream.cpp

Modified: llvm/trunk/lib/Support/raw_ostream.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Support/raw_ostream.cpp?rev=78926&r1=78925&r2=78926&view=diff

==============================================================================
--- llvm/trunk/lib/Support/raw_ostream.cpp (original)
+++ llvm/trunk/lib/Support/raw_ostream.cpp Thu Aug 13 13:38:15 2009
@@ -222,6 +222,8 @@
 }
 
 void raw_ostream::copy_to_buffer(const char *Ptr, size_t Size) {
+  assert(Size <= OutBufEnd - OutBufCur && "Buffer overrun!");
+
   // Handle short strings specially, memcpy isn't very good at very short
   // strings.
   switch (Size) {