http://www.ousob.com --- Legacy Redefined OuSob - File: /wwwroot/clipx/usr/include/libguile/random.h

/* classes: h_files */ #ifndef RANDOMH #define RANDOMH /* Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc. * * 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, 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 software; see the file COPYING. If not, write to * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, * Boston, MA 02111-1307 USA * * As a special exception, the Free Software Foundation gives permission * for additional uses of the text contained in its release of GUILE. * * The exception is that, if you link the GUILE library with other files * to produce an executable, this does not by itself cause the * resulting executable to be covered by the GNU General Public License. * Your use of that executable is in no way restricted on account of * linking the GUILE library code into it. * * This exception does not however invalidate any other reasons why * the executable file might be covered by the GNU General Public License. * * This exception applies only to the code released by the * Free Software Foundation under the name GUILE. If you copy * code from other Free Software Foundation releases into a copy of * GUILE, as the General Public License permits, the exception does * not apply to the code that you add in this way. To avoid misleading * anyone as to the status of such modified files, you must delete * this exception notice from them. * * If you write modifications of your own for GUILE, it is your choice * whether to permit this exception to apply to your modifications. * If you do not wish that, delete this exception notice. */ #include "libguile/__scm.h" /* * A plugin interface for RNGs * * Using this interface, it is possible for the application to tell * libguile to use a different RNG. This is desirable if it is * necessary to use the same RNG everywhere in the application in * order to prevent interference, if the application uses RNG * hardware, or if the application has special demands on the RNG. * * Look how the default generator is "plugged in" in scm_init_random(). */ typedef struct scm_t_rstate { int reserved0; double reserved1; /* Custom fields follow here */ } scm_t_rstate; typedef struct scm_t_rng { size_t rstate_size; /* size of random state */ unsigned long (*random_bits) (scm_t_rstate *state); /* gives 32 random bits */ void (*init_rstate) (scm_t_rstate *state, char *seed, int n); scm_t_rstate *(*copy_rstate) (scm_t_rstate *state); } scm_t_rng; extern scm_t_rng scm_the_rng; /* * Default RNG */ typedef struct scm_t_i_rstate { scm_t_rstate rstate; unsigned long w; unsigned long c; } scm_t_i_rstate; #if (SCM_DEBUG_DEPRECATED == 0) # define scm_rstate scm_t_rstate # define scm_rng scm_t_rng # define scm_i_rstate scm_t_i_rstate #endif extern unsigned long scm_i_uniform32 (scm_t_i_rstate *); extern void scm_i_init_rstate (scm_t_i_rstate *, char *seed, int n); extern scm_t_i_rstate *scm_i_copy_rstate (scm_t_i_rstate *); /* * Random number library functions */ extern scm_t_rstate *scm_c_make_rstate (char *, int); extern scm_t_rstate *scm_c_default_rstate (void); #define scm_c_uniform32(RSTATE) scm_the_rng.random_bits (RSTATE) extern double scm_c_uniform01 (scm_t_rstate *); extern double scm_c_normal01 (scm_t_rstate *); extern double scm_c_exp1 (scm_t_rstate *); extern unsigned long scm_c_random (scm_t_rstate *, unsigned long m); extern SCM scm_c_random_bignum (scm_t_rstate *, SCM m); /* * Scheme level interface */ extern scm_t_bits scm_tc16_rstate; #define SCM_RSTATEP(obj) SCM_TYP16_PREDICATE (scm_tc16_rstate, obj) #define SCM_RSTATE(obj) ((scm_t_rstate *) SCM_CELL_WORD_1 (obj)) extern unsigned char scm_masktab[256]; extern SCM scm_var_random_state; extern SCM scm_random (SCM n, SCM state); extern SCM scm_copy_random_state (SCM state); extern SCM scm_seed_to_random_state (SCM seed); extern SCM scm_random_uniform (SCM state); extern SCM scm_random_solid_sphere_x (SCM v, SCM state); extern SCM scm_random_hollow_sphere_x (SCM v, SCM state); extern SCM scm_random_normal (SCM state); extern SCM scm_random_normal_vector_x (SCM v, SCM state); extern SCM scm_random_exp (SCM state); extern void scm_init_random (void); #endif /* RANDOMH */ /* Local Variables: c-file-style: "gnu" End: */