Optimize xmalloc, xcalloc, xrealloc, and xstrdup

Add alloc_size attribute and apply consistently the malloc attribute
to xmalloc, xcalloc, xrealloc, and xstrdup.

1 files changed, 7 insertions, 4 deletions

diff --git a/catgets/gencat.c b/catgets/gencat.c
index c8cabb9bf6..a91554367d 100644
--- a/catgets/gencat.c
+++ b/catgets/gencat.c
@@ -138,10 +138,13 @@ static struct argp argp =
 
 
 /* Wrapper functions with error checking for standard functions.  */
-extern void *xmalloc (size_t n);
-extern void *xcalloc (size_t n, size_t s);
-extern void *xrealloc (void *o, size_t n);
-extern char *xstrdup (const char *);
+extern void *xmalloc (size_t n)
+  __attribute_malloc__ __attribute_alloc_size (1);
+extern void *xcalloc (size_t n, size_t s)
+  __attribute_malloc__ __attribute_alloc_size (1, 2);
+extern void *xrealloc (void *o, size_t n)
+  __attribute_malloc__ __attribute_alloc_size (2);
+extern char *xstrdup (const char *) __attribute_malloc__;
 
 /* Prototypes for local functions.  */
 static void error_print (void);