X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fxmalloc.c;h=696cf3c9a280bd22da7112c8e1794303fe6cd377;hb=17448795e00be0976f6e6ec9bfbb285cc2c3d1dd;hp=33ac504e29ed3a5b9d6d27b4d7b54c937e3f4b83;hpb=783c1624bd8b027a65b3fba57d3213ccb1a6ddbd;p=gnulib.git

diff --git a/lib/xmalloc.c b/lib/xmalloc.c
index 33ac504e2..696cf3c9a 100644
--- a/lib/xmalloc.c
+++ b/lib/xmalloc.c
@@ -1,5 +1,5 @@
 /* xmalloc.c -- malloc with out of memory checking
-   Copyright (C) 1990, 91, 92, 93, 94 Free Software Foundation, Inc.
+   Copyright (C) 1990-1997, 98, 99 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -15,73 +15,74 @@
    along with this program; if not, write to the Free Software Foundation,
    Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 
-#ifdef HAVE_CONFIG_H
+#if HAVE_CONFIG_H
 # include <config.h>
 #endif
 
-#if __STDC__
-# define VOID void
-#else
-# define VOID char
-#endif
-
 #include <sys/types.h>
 
 #if STDC_HEADERS
 # include <stdlib.h>
 #else
-VOID *malloc ();
-VOID *realloc ();
+void *calloc ();
+void *malloc ();
+void *realloc ();
 void free ();
 #endif
 
-/* This is for other GNU distributions with internationalized messages.
-   The GNU C Library itself does not yet support such messages.  */
-#if HAVE_LIBINTL_H
+#if ENABLE_NLS
 # include <libintl.h>
+# define _(Text) gettext (Text)
 #else
-# define gettext(msgid) (msgid)
+# define textdomain(Domain)
+# define _(Text) Text
 #endif
+#define N_(Text) Text
+
+#include "error.h"
+#include "xalloc.h"
 
 #ifndef EXIT_FAILURE
 # define EXIT_FAILURE 1
 #endif
 
+#ifndef HAVE_DONE_WORKING_MALLOC_CHECK
+you must run the autoconf test for a properly working malloc -- see malloc.m4
+#endif
+
+#ifndef HAVE_DONE_WORKING_REALLOC_CHECK
+you must run the autoconf test for a properly working realloc -- see realloc.m4
+#endif
+
 /* Exit value when the requested amount of memory is not available.
    The caller may set it to some other value.  */
-int xmalloc_exit_failure = EXIT_FAILURE;
+int xalloc_exit_failure = EXIT_FAILURE;
 
-#if __STDC__ && (HAVE_VPRINTF || HAVE_DOPRNT)
-void error (int, int, const char *, ...);
-#else
-void error ();
-#endif
+/* If non NULL, call this function when memory is exhausted. */
+void (*xalloc_fail_func) () = 0;
 
-static VOID *
-fixup_null_alloc (n)
-     size_t n;
-{
-  VOID *p;
+/* If XALLOC_FAIL_FUNC is NULL, or does return, display this message
+   before exiting when memory is exhausted.  Goes through gettext. */
+char *const xalloc_msg_memory_exhausted = N_("Memory exhausted");
 
-  p = 0;
-  if (n == 0)
-    p = malloc ((size_t) 1);
-  if (p == 0)
-    error (xmalloc_exit_failure, 0, gettext ("Memory exhausted"));
-  return p;
+static void
+xalloc_fail (void)
+{
+  if (xalloc_fail_func)
+    (*xalloc_fail_func) ();
+  error (xalloc_exit_failure, 0, "%s", _(xalloc_msg_memory_exhausted));
 }
 
 /* Allocate N bytes of memory dynamically, with error checking.  */
 
-VOID *
-xmalloc (n)
-     size_t n;
+void *
+xmalloc (size_t n)
 {
-  VOID *p;
+  void *p;
 
   p = malloc (n);
   if (p == 0)
-    p = fixup_null_alloc (n);
+    xalloc_fail ();
   return p;
 }
 
@@ -89,15 +90,24 @@ xmalloc (n)
    with error checking.
    If P is NULL, run xmalloc.  */
 
-VOID *
-xrealloc (p, n)
-     VOID *p;
-     size_t n;
+void *
+xrealloc (void *p, size_t n)
 {
-  if (p == 0)
-    return xmalloc (n);
   p = realloc (p, n);
   if (p == 0)
-    p = fixup_null_alloc (n);
+    xalloc_fail ();
+  return p;
+}
+
+/* Allocate memory for N elements of S bytes, with error checking.  */
+
+void *
+xcalloc (size_t n, size_t s)
+{
+  void *p;
+
+  p = calloc (n, s);
+  if (p == 0)
+    xalloc_fail ();
   return p;
 }