Sir
In annex a small program to demonstrate the error.
Compile : gcc -std=gnu99 -Wall : No error.
Link : gcc -std=gnu99 No error.
Execute : error message :
symbol lookup error: ./testrng: undefined symbol: gsl_cdf_poisson_P
or :
symbol lookup error: ./testrng: undefined symbol: gsl_cdf_poisson_Q
depending on which routine I called.
I use GSL version 1.9 recently downloaded and installed in /usr/local.
The two routines in question are present in the relevant include file.
What am I doing wrong ?
Thank you for your attention
Lucien Haijen
#include <stdlib.h>
#include <stdio.h>
#include <gsl/gsl_rng.h>
#include <gsl/gsl_cdf.h>
#include <gsl/gsl_randist.h>
#define MEAN 3.0
int main()
{
double mean = MEAN, sigma = 1.0, maxval = 5.0 ;
double v1, v2, v3 ;
gsl_rng *ran ;
ran = gsl_rng_alloc(gsl_rng_cmrg) ;
if(!ran)
{
printf("gsl_rng_alloc() failed\n") ;
exit(0) ;
}
v1 = gsl_cdf_gaussian_P(-mean,sigma) ;
v2 = gsl_cdf_gaussian_Q(maxval - mean,sigma) ;
v3 = gsl_cdf_poisson_P(5,mean) ;
/*
v3 = gsl_cdf_poisson_Q(5,mean) ;
*/
printf("v1=%f v2=%f v3=%f\n",v1,v2,v3) ;
exit(0) ;
}
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