Imported gcc-4.4.3

[msp430-gcc.git] / gmp / mpz / iset.c

diff --git a/gmp/mpz/iset.c b/gmp/mpz/iset.c
new file mode 100644 (file)
index 0000000..384ca79
--- /dev/null
+++ b/gmp/mpz/iset.c
@@ -0,0 +1,48 @@
+/* mpz_init_set (src_integer) -- Make a new multiple precision number with
+   a value copied from SRC_INTEGER.
+
+Copyright 1991, 1993, 1994, 1996, 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_init_set (mpz_ptr w, mpz_srcptr u)
+{
+  mp_ptr wp, up;
+  mp_size_t usize, size;
+
+  usize = u->_mp_size;
+  size = ABS (usize);
+
+  w->_mp_alloc = MAX (size, 1);
+  w->_mp_d = (mp_ptr) (*__gmp_allocate_func) (w->_mp_alloc * BYTES_PER_MP_LIMB);
+
+  wp = w->_mp_d;
+  up = u->_mp_d;
+
+  MPN_COPY (wp, up, size);
+  w->_mp_size = usize;
+
+#ifdef __CHECKER__
+  /* let the low limb look initialized, for the benefit of mpz_get_ui etc */
+  if (size == 0)
+    wp[0] = 0;
+#endif
+}