[llvm-commits] [llvm] r111332 - /llvm/trunk/include/llvm/ADT/StringRef.h

[Chris Lattner]

Author: lattner
Date: Tue Aug 17 19:11:25 2010
New Revision: 111332

URL: http://llvm.org/viewvc/llvm-project?rev=111332&view=rev
Log:
Don't pass in a null pointer to std::string's ctor, an empty string
ref should produce an empty std::string.  This fixes PR7879.

Modified:
    llvm/trunk/include/llvm/ADT/StringRef.h

Modified: llvm/trunk/include/llvm/ADT/StringRef.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/ADT/StringRef.h?rev=111332&r1=111331&r2=111332&view=diff
==============================================================================
--- llvm/trunk/include/llvm/ADT/StringRef.h (original)
+++ llvm/trunk/include/llvm/ADT/StringRef.h Tue Aug 17 19:11:25 2010
@@ -149,7 +149,10 @@
     unsigned edit_distance(StringRef Other, bool AllowReplacements = true);
 
     /// str - Get the contents as an std::string.
-    std::string str() const { return std::string(Data, Length); }
+    std::string str() const {
+      if (Data == 0) return "";
+      return std::string(Data, Length);
+    }
 
     /// @}
     /// @name Operator Overloads