From: Richard Stallman <rms@gnu.org>
Date: Fri, 5 Nov 1993 20:32:06 +0000 (+0000)
Subject: (compare_strings): Check for null pointers.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=6c8747b19a6eaef778e79a05c03e738677e987b5;p=gcc.git

(compare_strings): Check for null pointers.

From-SVN: r6014
---

diff --git a/gcc/objc/hash.h b/gcc/objc/hash.h
index e054e7d03aa..2b9ea249a7e 100644
--- a/gcc/objc/hash.h
+++ b/gcc/objc/hash.h
@@ -193,7 +193,12 @@ compare_ptrs (const void *k1, const void *k2)
 static inline int 
 compare_strings (const void *k1, const void *k2)
 {
-  return !strcmp (k1, k2);
+  if (k1 == k2)
+    return 1;
+  else if (k1 == 0 || k2 == 0)
+    return 0;
+  else
+    return !strcmp (k1, k2);
 }