diff -r d59bea55db9b -r c445c931472f src/glprng.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/glprng.h	Mon Dec 06 13:09:21 2010 +0100
@@ -0,0 +1,68 @@
+/* glprng.h (pseudo-random number generator) */
+
+/***********************************************************************
+*  This code is part of GLPK (GNU Linear Programming Kit).
+*
+*  Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
+*  2009, 2010 Andrew Makhorin, Department for Applied Informatics,
+*  Moscow Aviation Institute, Moscow, Russia. All rights reserved.
+*  E-mail: <mao@gnu.org>.
+*
+*  GLPK is free software: you can redistribute it and/or modify it
+*  under the terms of the GNU General Public License as published by
+*  the Free Software Foundation, either version 3 of the License, or
+*  (at your option) any later version.
+*
+*  GLPK 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 a copy of the GNU General Public License
+*  along with GLPK. If not, see <http://www.gnu.org/licenses/>.
+***********************************************************************/
+
+#ifndef GLPRNG_H
+#define GLPRNG_H
+
+typedef struct RNG RNG;
+
+struct RNG
+{     /* Knuth's portable pseudo-random number generator */
+      int A[56];
+      /* pseudo-random values */
+      int *fptr;
+      /* the next A value to be exported */
+};
+
+#define rng_create_rand _glp_rng_create_rand
+RNG *rng_create_rand(void);
+/* create pseudo-random number generator */
+
+#define rng_init_rand _glp_rng_init_rand
+void rng_init_rand(RNG *rand, int seed);
+/* initialize pseudo-random number generator */
+
+#define rng_next_rand _glp_rng_next_rand
+int rng_next_rand(RNG *rand);
+/* obtain pseudo-random integer in the range [0, 2^31-1] */
+
+#define rng_unif_rand _glp_rng_unif_rand
+int rng_unif_rand(RNG *rand, int m);
+/* obtain pseudo-random integer in the range [0, m-1] */
+
+#define rng_delete_rand _glp_rng_delete_rand
+void rng_delete_rand(RNG *rand);
+/* delete pseudo-random number generator */
+
+#define rng_unif_01 _glp_rng_unif_01
+double rng_unif_01(RNG *rand);
+/* obtain pseudo-random number in the range [0, 1] */
+
+#define rng_uniform _glp_rng_uniform
+double rng_uniform(RNG *rand, double a, double b);
+/* obtain pseudo-random number in the range [a, b] */
+
+#endif
+
+/* eof */