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diff --git a/gmp/mpz/array_init.c b/gmp/mpz/array_init.c
new file mode 100644
index 00000000..0e2f9aaa
--- /dev/null
+++ b/gmp/mpz/array_init.c
@@ -0,0 +1,40 @@
+/* mpz_array_init (array, array_size, size_per_elem) --
+
+Copyright 1991, 1993, 1994, 1995, 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 "gmp.h"
+#include "gmp-impl.h"
+
+void
+mpz_array_init (mpz_ptr arr, mp_size_t arr_size, mp_size_t nbits)
+{
+  register mp_ptr p;
+  register mp_size_t i;
+  mp_size_t nlimbs;
+
+  nlimbs = (nbits + GMP_NUMB_BITS - 1) / GMP_NUMB_BITS;
+  p = (mp_ptr) (*__gmp_allocate_func) (arr_size * nlimbs * BYTES_PER_MP_LIMB);
+
+  for (i = 0; i < arr_size; i++)
+    {
+      arr[i]._mp_alloc = nlimbs + 1; /* Yes, lie a little... */
+      arr[i]._mp_size = 0;
+      arr[i]._mp_d = p + i * nlimbs;
+    }
+}