[Bug-gsl] Bug with hypergeometric function

[antiwin antiwin]

 Hi,

I have found a problem with the function gsl_sf_hyperg_2F0. The program that
I used is the following:
#include<stdio.h>
#include<gsl/gsl_sf_hyperg.h>
int main(void)
{
double a,b,x,y;
a=1;
b=2;
x=5;
y=gsl_sf_hyperg_2F0(a,b,x);
return 0;
}

The compilation goes without error but when I try to execute the program I
get the following error

gsl: hyperg_2F0.c:52: ERROR: domain error
Default GSL error handler invoked.
Abandon

When I substitute the gsl_sf_hyperg_2F0 by a bessel function the program
goes well... It seems that there is a bug in this function...