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authorLinus Nordberg <linus@nordberg.se>2000-03-31 16:19:07 +0200
committerLinus Nordberg <linus@nordberg.se>2000-03-31 16:19:07 +0200
commit332f65ff8794a8abee466e30386f9b76647cd2d8 (patch)
tree6b6d952cd7ad801943d4a14b5341a96aaa234948 /mpz/urandomb.c
parent62315b4f7f3ddefec618d83bd038eb8e35b646ba (diff)
downloadgmp-332f65ff8794a8abee466e30386f9b76647cd2d8.tar.gz
Rename urandom.c to urandomb.c.
Diffstat (limited to 'mpz/urandomb.c')
-rw-r--r--mpz/urandomb.c49
1 files changed, 49 insertions, 0 deletions
diff --git a/mpz/urandomb.c b/mpz/urandomb.c
new file mode 100644
index 000000000..f08ca6440
--- /dev/null
+++ b/mpz/urandomb.c
@@ -0,0 +1,49 @@
+/* urandomb (rop, state, n) -- Generate a uniform pseudorandom integer
+ in the range 0 to 2^N - 1, inclusive, using STATE as the random
+ state previously initialized by a call to gmp_rand_init().
+
+Copyright (C) 1999, 2000 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 Library General Public License as published by
+the Free Software Foundation; either version 2 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 Library General Public
+License for more details.
+
+You should have received a copy of the GNU Library General Public License
+along with the GNU MP Library; see the file COPYING.LIB. If not, write to
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+MA 02111-1307, USA. */
+
+#include "gmp.h"
+#include "gmp-impl.h"
+
+void
+#if __STDC__
+mpz_urandomb (mpz_t rop, gmp_rand_state s, unsigned long int nbits)
+#else
+mpz_urandomb (rop, nbits, s)
+ mpz_t rop;
+ gmp_rand_state s;
+ unsigned long int nbits;
+#endif
+{
+ mp_ptr rp;
+ mp_size_t size;
+
+ size = nbits / BITS_PER_MP_LIMB + (nbits % BITS_PER_MP_LIMB != 0);
+ if (size > SIZ (rop))
+ _mpz_realloc (rop, size);
+
+ rp = PTR (rop);
+
+ mpn_rawrandom (rp, s, nbits);
+ MPN_NORMALIZE (rp, size);
+ SIZ (rop) = size;
+}