NICE_VisLearning/math/pdf/gslRandomNumberGenerator.h

#ifndef GSLRANDOMNUMBERGENERATOR
#define GSLRANDOMNUMBERGENERATOR

#ifdef NICE_USELIB_GSL
#include <gsl/gsl_randist.h>
#include <gsl/gsl_rng.h>


static gsl_rng *randomGSL = NULL;

static void initGSLRandom ()
{
    if ( randomGSL == NULL )
    {
	gsl_rng_env_setup();
	const gsl_rng_type * T = gsl_rng_default;
	gsl_rng_default_seed = time(NULL);
	randomGSL = gsl_rng_alloc (T); 
    }
}

static void resetGSLRandom ()
{
    if ( randomGSL != NULL )
    {
	gsl_rng_free ( randomGSL );   
	randomGSL = NULL;
    }
}

#endif
#endif