--- /dev/null
+/* Memory allocation routines.
+
+Copyright 1991, 1993, 1994, 2000, 2001, 2002 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library.
+
+The GNU MP Library is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 3 of the License, or (at your
+option) any later version.
+
+The GNU MP Library is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+License for more details.
+
+You should have received a copy of the GNU Lesser General Public License
+along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. */
+
+#include <stdio.h>
+#include <stdlib.h> /* for malloc, realloc, free */
+
+#include "gmp.h"
+#include "gmp-impl.h"
+
+
+void * (*__gmp_allocate_func) __GMP_PROTO ((size_t)) = __gmp_default_allocate;
+void * (*__gmp_reallocate_func) __GMP_PROTO ((void *, size_t, size_t))
+ = __gmp_default_reallocate;
+void (*__gmp_free_func) __GMP_PROTO ((void *, size_t)) = __gmp_default_free;
+
+
+/* Default allocation functions. In case of failure to allocate/reallocate
+ an error message is written to stderr and the program aborts. */
+
+void *
+__gmp_default_allocate (size_t size)
+{
+ void *ret;
+#ifdef DEBUG
+ size_t req_size = size;
+ size += 2 * BYTES_PER_MP_LIMB;
+#endif
+ ret = malloc (size);
+ if (ret == 0)
+ {
+ fprintf (stderr, "GNU MP: Cannot allocate memory (size=%lu)\n", (long) size);
+ abort ();
+ }
+
+#ifdef DEBUG
+ {
+ mp_ptr p = ret;
+ p++;
+ p[-1] = (0xdeadbeef << 31) + 0xdeafdeed;
+ if (req_size % BYTES_PER_MP_LIMB == 0)
+ p[req_size / BYTES_PER_MP_LIMB] = ~((0xdeadbeef << 31) + 0xdeafdeed);
+ ret = p;
+ }
+#endif
+ return ret;
+}
+
+void *
+__gmp_default_reallocate (void *oldptr, size_t old_size, size_t new_size)
+{
+ void *ret;
+
+#ifdef DEBUG
+ size_t req_size = new_size;
+
+ if (old_size != 0)
+ {
+ mp_ptr p = oldptr;
+ if (p[-1] != (0xdeadbeef << 31) + 0xdeafdeed)
+ {
+ fprintf (stderr, "gmp: (realloc) data clobbered before allocation block\n");
+ abort ();
+ }
+ if (old_size % BYTES_PER_MP_LIMB == 0)
+ if (p[old_size / BYTES_PER_MP_LIMB] != ~((0xdeadbeef << 31) + 0xdeafdeed))
+ {
+ fprintf (stderr, "gmp: (realloc) data clobbered after allocation block\n");
+ abort ();
+ }
+ oldptr = p - 1;
+ }
+
+ new_size += 2 * BYTES_PER_MP_LIMB;
+#endif
+
+ ret = realloc (oldptr, new_size);
+ if (ret == 0)
+ {
+ fprintf (stderr, "GNU MP: Cannot reallocate memory (old_size=%lu new_size=%lu)\n", (long) old_size, (long) new_size);
+ abort ();
+ }
+
+#ifdef DEBUG
+ {
+ mp_ptr p = ret;
+ p++;
+ p[-1] = (0xdeadbeef << 31) + 0xdeafdeed;
+ if (req_size % BYTES_PER_MP_LIMB == 0)
+ p[req_size / BYTES_PER_MP_LIMB] = ~((0xdeadbeef << 31) + 0xdeafdeed);
+ ret = p;
+ }
+#endif
+ return ret;
+}
+
+void
+__gmp_default_free (void *blk_ptr, size_t blk_size)
+{
+#ifdef DEBUG
+ {
+ mp_ptr p = blk_ptr;
+ if (blk_size != 0)
+ {
+ if (p[-1] != (0xdeadbeef << 31) + 0xdeafdeed)
+ {
+ fprintf (stderr, "gmp: (free) data clobbered before allocation block\n");
+ abort ();
+ }
+ if (blk_size % BYTES_PER_MP_LIMB == 0)
+ if (p[blk_size / BYTES_PER_MP_LIMB] != ~((0xdeadbeef << 31) + 0xdeafdeed))
+ {
+ fprintf (stderr, "gmp: (free) data clobbered after allocation block\n");
+ abort ();
+ }
+ }
+ blk_ptr = p - 1;
+ }
+#endif
+ free (blk_ptr);
+}