/*
 ============================================================================
 Name        : kongruencia.h
 Author      : Stippinger Marcell
 Version     : 1.0
 Copyright   : BME-TTK FI SzamSzim gyak segedanyag
 Description : multiplicative congruential RNG in C, Ansi-style
 ============================================================================
 */

/* Type definition */
typedef struct { unsigned int a, m, c, seed; } my_rng;

/* Allocate an RNG and initialize parameters */
my_rng* my_rng_alloc(unsigned int a, unsigned int m, unsigned int c);

/* Set seed */
void my_rng_set(my_rng* r, unsigned int seed);

/* Get a random int */
unsigned int my_rng_get(my_rng* r);

/* Get boundaries */
unsigned int my_rng_min(my_rng* r);
unsigned int my_rng_max(my_rng* r);

/* Get a random double in [0,1) */
double my_rng_uniform(my_rng* r);

/* Free allocated space */
void my_rng_free(my_rng* r);