X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/6e30ede87a1c39c53842a6a747ecd9f7484d92a5..63951be29fcb8e21146a9377176d53d509c575ca:/src/uniqstr.h?ds=inline

diff --git a/src/uniqstr.h b/src/uniqstr.h
index 757128fc..677ecc42 100644
--- a/src/uniqstr.h
+++ b/src/uniqstr.h
@@ -1,7 +1,6 @@
 /* Keeping a unique copy of strings.
 
-   Copyright (C) 2002, 2003, 2008, 2009, 2010 Free Software
-   Foundation, Inc.
+   Copyright (C) 2002-2003, 2008-2012 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
@@ -37,7 +36,7 @@ uniqstr uniqstr_vsprintf (char const *format, ...)
   __attribute__ ((__format__ (__printf__, 1, 2)));
 
 /* Two uniqstr values have the same value iff they are the same.  */
-#define UNIQSTR_EQ(USTR1, USTR2) ((USTR1) == (USTR2))
+#define UNIQSTR_EQ(USTR1, USTR2) (!!((USTR1) == (USTR2)))
 
 /* Compare two uniqstr a la strcmp: negative for <, nul for =, and
    positive for >.  Undefined order, relies on addresses.  */