From: Devang Patel <dpatel@apple.com>
Date: Tue, 29 Sep 2009 18:39:56 +0000 (+0000)
Subject: Create empty StringRef is incoming cstring is NULL.
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=1e9a727f1058c9e8f90eae9ac656214265244f7f;p=oota-llvm.git

Create empty StringRef is incoming cstring is NULL.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83082 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/llvm/ADT/StringRef.h b/include/llvm/ADT/StringRef.h
index e4fd258cb87..30379a38f46 100644
--- a/include/llvm/ADT/StringRef.h
+++ b/include/llvm/ADT/StringRef.h
@@ -46,7 +46,7 @@ namespace llvm {
 
     /// Construct a string ref from a cstring.
     /*implicit*/ StringRef(const char *Str) 
-      : Data(Str), Length(::strlen(Str)) {}
+      : Data(Str) { if (Str) Length = ::strlen(Str); else Length = 0; }
  
     /// Construct a string ref from a pointer and length.
     /*implicit*/ StringRef(const char *_Data, unsigned _Length)