+#include <sys/types.h>
+
#ifndef PARAMS
# if defined PROTOTYPES || (defined __STDC__ && __STDC__)
# define PARAMS(Args) Args
/* FIXME: describe */
extern void (*xalloc_fail_func) ();
-void *xmalloc PARAMS ((size_t n));
+void *xmalloc PARAMS ((size_t n)) __attribute__ ((malloc));
+void *xmalloc_and_zero PARAMS ((size_t n)) __attribute__ ((malloc));
void *xcalloc PARAMS ((size_t n, size_t s));
-void *xrealloc PARAMS ((void *p, size_t n));
+void *xrealloc PARAMS ((void *p, size_t n)) __attribute__ ((malloc));
+
+char *xstrdup PARAMS ((const char *s)) __attribute__ ((malloc));