summaryrefslogtreecommitdiff
path: root/gsl-1.9/rng/gsl_rng.h
diff options
context:
space:
mode:
Diffstat (limited to 'gsl-1.9/rng/gsl_rng.h')
-rw-r--r--gsl-1.9/rng/gsl_rng.h218
1 files changed, 218 insertions, 0 deletions
diff --git a/gsl-1.9/rng/gsl_rng.h b/gsl-1.9/rng/gsl_rng.h
new file mode 100644
index 0000000..a7c3a49
--- /dev/null
+++ b/gsl-1.9/rng/gsl_rng.h
@@ -0,0 +1,218 @@
+/* rng/gsl_rng.h
+ *
+ * Copyright (C) 1996, 1997, 1998, 1999, 2000, 2004 James Theiler, Brian Gough
+ *
+ * This program 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 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __GSL_RNG_H__
+#define __GSL_RNG_H__
+#include <stdlib.h>
+#include <gsl/gsl_types.h>
+#include <gsl/gsl_errno.h>
+
+#undef __BEGIN_DECLS
+#undef __END_DECLS
+#ifdef __cplusplus
+# define __BEGIN_DECLS extern "C" {
+# define __END_DECLS }
+#else
+# define __BEGIN_DECLS /* empty */
+# define __END_DECLS /* empty */
+#endif
+
+__BEGIN_DECLS
+
+typedef struct
+ {
+ const char *name;
+ unsigned long int max;
+ unsigned long int min;
+ size_t size;
+ void (*set) (void *state, unsigned long int seed);
+ unsigned long int (*get) (void *state);
+ double (*get_double) (void *state);
+ }
+gsl_rng_type;
+
+typedef struct
+ {
+ const gsl_rng_type * type;
+ void *state;
+ }
+gsl_rng;
+
+
+/* These structs also need to appear in default.c so you can select
+ them via the environment variable GSL_RNG_TYPE */
+
+GSL_VAR const gsl_rng_type *gsl_rng_borosh13;
+GSL_VAR const gsl_rng_type *gsl_rng_coveyou;
+GSL_VAR const gsl_rng_type *gsl_rng_cmrg;
+GSL_VAR const gsl_rng_type *gsl_rng_fishman18;
+GSL_VAR const gsl_rng_type *gsl_rng_fishman20;
+GSL_VAR const gsl_rng_type *gsl_rng_fishman2x;
+GSL_VAR const gsl_rng_type *gsl_rng_gfsr4;
+GSL_VAR const gsl_rng_type *gsl_rng_knuthran;
+GSL_VAR const gsl_rng_type *gsl_rng_knuthran2;
+GSL_VAR const gsl_rng_type *gsl_rng_knuthran2002;
+GSL_VAR const gsl_rng_type *gsl_rng_lecuyer21;
+GSL_VAR const gsl_rng_type *gsl_rng_minstd;
+GSL_VAR const gsl_rng_type *gsl_rng_mrg;
+GSL_VAR const gsl_rng_type *gsl_rng_mt19937;
+GSL_VAR const gsl_rng_type *gsl_rng_mt19937_1999;
+GSL_VAR const gsl_rng_type *gsl_rng_mt19937_1998;
+GSL_VAR const gsl_rng_type *gsl_rng_r250;
+GSL_VAR const gsl_rng_type *gsl_rng_ran0;
+GSL_VAR const gsl_rng_type *gsl_rng_ran1;
+GSL_VAR const gsl_rng_type *gsl_rng_ran2;
+GSL_VAR const gsl_rng_type *gsl_rng_ran3;
+GSL_VAR const gsl_rng_type *gsl_rng_rand;
+GSL_VAR const gsl_rng_type *gsl_rng_rand48;
+GSL_VAR const gsl_rng_type *gsl_rng_random128_bsd;
+GSL_VAR const gsl_rng_type *gsl_rng_random128_glibc2;
+GSL_VAR const gsl_rng_type *gsl_rng_random128_libc5;
+GSL_VAR const gsl_rng_type *gsl_rng_random256_bsd;
+GSL_VAR const gsl_rng_type *gsl_rng_random256_glibc2;
+GSL_VAR const gsl_rng_type *gsl_rng_random256_libc5;
+GSL_VAR const gsl_rng_type *gsl_rng_random32_bsd;
+GSL_VAR const gsl_rng_type *gsl_rng_random32_glibc2;
+GSL_VAR const gsl_rng_type *gsl_rng_random32_libc5;
+GSL_VAR const gsl_rng_type *gsl_rng_random64_bsd;
+GSL_VAR const gsl_rng_type *gsl_rng_random64_glibc2;
+GSL_VAR const gsl_rng_type *gsl_rng_random64_libc5;
+GSL_VAR const gsl_rng_type *gsl_rng_random8_bsd;
+GSL_VAR const gsl_rng_type *gsl_rng_random8_glibc2;
+GSL_VAR const gsl_rng_type *gsl_rng_random8_libc5;
+GSL_VAR const gsl_rng_type *gsl_rng_random_bsd;
+GSL_VAR const gsl_rng_type *gsl_rng_random_glibc2;
+GSL_VAR const gsl_rng_type *gsl_rng_random_libc5;
+GSL_VAR const gsl_rng_type *gsl_rng_randu;
+GSL_VAR const gsl_rng_type *gsl_rng_ranf;
+GSL_VAR const gsl_rng_type *gsl_rng_ranlux;
+GSL_VAR const gsl_rng_type *gsl_rng_ranlux389;
+GSL_VAR const gsl_rng_type *gsl_rng_ranlxd1;
+GSL_VAR const gsl_rng_type *gsl_rng_ranlxd2;
+GSL_VAR const gsl_rng_type *gsl_rng_ranlxs0;
+GSL_VAR const gsl_rng_type *gsl_rng_ranlxs1;
+GSL_VAR const gsl_rng_type *gsl_rng_ranlxs2;
+GSL_VAR const gsl_rng_type *gsl_rng_ranmar;
+GSL_VAR const gsl_rng_type *gsl_rng_slatec;
+GSL_VAR const gsl_rng_type *gsl_rng_taus;
+GSL_VAR const gsl_rng_type *gsl_rng_taus2;
+GSL_VAR const gsl_rng_type *gsl_rng_taus113;
+GSL_VAR const gsl_rng_type *gsl_rng_transputer;
+GSL_VAR const gsl_rng_type *gsl_rng_tt800;
+GSL_VAR const gsl_rng_type *gsl_rng_uni;
+GSL_VAR const gsl_rng_type *gsl_rng_uni32;
+GSL_VAR const gsl_rng_type *gsl_rng_vax;
+GSL_VAR const gsl_rng_type *gsl_rng_waterman14;
+GSL_VAR const gsl_rng_type *gsl_rng_zuf;
+
+const gsl_rng_type ** gsl_rng_types_setup(void);
+
+GSL_VAR const gsl_rng_type *gsl_rng_default;
+GSL_VAR unsigned long int gsl_rng_default_seed;
+
+gsl_rng *gsl_rng_alloc (const gsl_rng_type * T);
+int gsl_rng_memcpy (gsl_rng * dest, const gsl_rng * src);
+gsl_rng *gsl_rng_clone (const gsl_rng * r);
+
+void gsl_rng_free (gsl_rng * r);
+
+void gsl_rng_set (const gsl_rng * r, unsigned long int seed);
+unsigned long int gsl_rng_max (const gsl_rng * r);
+unsigned long int gsl_rng_min (const gsl_rng * r);
+const char *gsl_rng_name (const gsl_rng * r);
+
+int gsl_rng_fread (FILE * stream, gsl_rng * r);
+int gsl_rng_fwrite (FILE * stream, const gsl_rng * r);
+
+size_t gsl_rng_size (const gsl_rng * r);
+void * gsl_rng_state (const gsl_rng * r);
+
+void gsl_rng_print_state (const gsl_rng * r);
+
+const gsl_rng_type * gsl_rng_env_setup (void);
+
+unsigned long int gsl_rng_get (const gsl_rng * r);
+double gsl_rng_uniform (const gsl_rng * r);
+double gsl_rng_uniform_pos (const gsl_rng * r);
+unsigned long int gsl_rng_uniform_int (const gsl_rng * r, unsigned long int n);
+
+
+#ifdef HAVE_INLINE
+extern inline unsigned long int gsl_rng_get (const gsl_rng * r);
+
+extern inline unsigned long int
+gsl_rng_get (const gsl_rng * r)
+{
+ return (r->type->get) (r->state);
+}
+
+extern inline double gsl_rng_uniform (const gsl_rng * r);
+
+extern inline double
+gsl_rng_uniform (const gsl_rng * r)
+{
+ return (r->type->get_double) (r->state);
+}
+
+extern inline double gsl_rng_uniform_pos (const gsl_rng * r);
+
+extern inline double
+gsl_rng_uniform_pos (const gsl_rng * r)
+{
+ double x ;
+ do
+ {
+ x = (r->type->get_double) (r->state) ;
+ }
+ while (x == 0) ;
+
+ return x ;
+}
+
+extern inline unsigned long int gsl_rng_uniform_int (const gsl_rng * r, unsigned long int n);
+
+extern inline unsigned long int
+gsl_rng_uniform_int (const gsl_rng * r, unsigned long int n)
+{
+ unsigned long int offset = r->type->min;
+ unsigned long int range = r->type->max - offset;
+ unsigned long int scale;
+ unsigned long int k;
+
+ if (n > range || n == 0)
+ {
+ GSL_ERROR_VAL ("invalid n, either 0 or exceeds maximum value of generator",
+ GSL_EINVAL, 0) ;
+ }
+
+ scale = range / n;
+
+ do
+ {
+ k = (((r->type->get) (r->state)) - offset) / scale;
+ }
+ while (k >= n);
+
+ return k;
+}
+#endif /* HAVE_INLINE */
+
+__END_DECLS
+
+#endif /* __GSL_RNG_H__ */