Add a new random function (uniform distribution and use of a gmp_randstate_t argument).

git-svn-id: svn://scm.gforge.inria.fr/svn/mpc/trunk@158 211d60ee-9f03-0410-a15a-8952a2c7a4e4

1 files changed, 33 insertions, 0 deletions

diff --git a/src/urandom.c b/src/urandom.c
new file mode 100644
index 0000000..cd6a23b
--- /dev/null
+++ b/src/urandom.c
@@ -0,0 +1,33 @@
+/* mpc_urandom -- Generate a random complex number uniformly distributed in
+   the interval [0,1[.
+
+Copyright (C) 2008 Philippe Th\'eveny
+
+This file is part of the MPC Library.
+
+The MPC 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 2.1 of the License, or (at your
+option) any later version.
+
+The MPC 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 MPC 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 "mpc.h"
+
+int
+mpc_urandom (mpc_ptr a, gmp_randstate_t state)
+{
+  int r, i;
+
+  r = mpfr_urandomb (MPC_RE(a), state);
+  i = mpfr_urandomb (MPC_IM(a), state);
+  return r && i;
+}