Add Chromium-only Blender WebEngine parity work

blender-5.2.0/extern/gmp-source/mpz/array_init.c

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+/* mpz_array_init (array, array_size, size_per_elem) --
+
+Copyright 1991, 1993-1995, 2000-2002, 2012 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 either:
+
+  * 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.
+
+or
+
+  * the GNU General Public License as published by the Free Software
+    Foundation; either version 2 of the License, or (at your option) any
+    later version.
+
+or both in parallel, as here.
+
+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 General Public License
+for more details.
+
+You should have received copies of the GNU General Public License and the
+GNU Lesser General Public License along with the GNU MP Library.  If not,
+see https://www.gnu.org/licenses/.  */
+
+#include "gmp-impl.h"
+
+void
+mpz_array_init (mpz_ptr arr, mp_size_t arr_size, mp_size_t nbits)
+{
+  mp_ptr p;
+  mp_size_t i;
+  mp_size_t nlimbs;
+
+  nlimbs = nbits / GMP_NUMB_BITS + 1;
+  p = __GMP_ALLOCATE_FUNC_LIMBS (arr_size * nlimbs);
+
+  for (i = 0; i < arr_size; i++)
+    {
+      ALLOC (&arr[i]) = nlimbs + 1; /* Yes, lie a little... */
+      SIZ (&arr[i]) = 0;
+      PTR (&arr[i]) = p + i * nlimbs;
+    }
+}