Import Upstream version 1.0pre7

lib/xalloc.h

@@ -0,0 +1,26 @@
+#include <sys/types.h>
+
+#ifndef PARAMS
+# if defined PROTOTYPES || (defined __STDC__ && __STDC__)
+#  define PARAMS(Args) Args
+# else
+#  define PARAMS(Args) ()
+# endif
+#endif
+
+/* Exit value when the requested amount of memory is not available.
+   The caller may set it to some other value.  */
+extern int xalloc_exit_failure;
+
+/* FIXME: describe */
+extern char *const xalloc_msg_memory_exhausted;
+
+/* FIXME: describe */
+extern void (*xalloc_fail_func) ();
+
+void *xmalloc PARAMS ((size_t n));
+void *xmalloc_and_zero PARAMS ((size_t n));
+void *xcalloc PARAMS ((size_t n, size_t s));
+void *xrealloc PARAMS ((void *p, size_t n));
+
+char *xstrdup PARAMS ((const char *s));