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-rw-r--r--generic/tclStringObj.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/generic/tclStringObj.c b/generic/tclStringObj.c
index 40ec1bf..af94b6d 100644
--- a/generic/tclStringObj.c
+++ b/generic/tclStringObj.c
@@ -33,7 +33,7 @@
* See the file "license.terms" for information on usage and redistribution of
* this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
- * RCS: @(#) $Id: tclStringObj.c,v 1.57 2006/08/28 16:05:32 dgp Exp $ */
+ * RCS: @(#) $Id: tclStringObj.c,v 1.58 2006/09/24 20:46:40 msofer Exp $ */
#include "tclInt.h"
#include "tommath.h"
@@ -110,7 +110,9 @@ typedef struct String {
#define STRING_UALLOC(numChars) \
(numChars * sizeof(Tcl_UniChar))
#define STRING_SIZE(ualloc) \
- ((unsigned) (sizeof(String) - sizeof(Tcl_UniChar) + ualloc))
+ ((unsigned) ((ualloc) \
+ ? sizeof(String) - sizeof(Tcl_UniChar) + (ualloc) \
+ : sizeof(String)))
#define GET_STRING(objPtr) \
((String *) (objPtr)->internalRep.otherValuePtr)
#define SET_STRING(objPtr, stringPtr) \