[Help-gsl] Keeping fixed memory allocation for an interpolating object

[Ruben Farinelli]

Dear GSL,
I have the following question.

I need to pass thousands of times two arrays to a custom function in order to 
perform a spline interpolation.
However allocating at each call in the function the dimension of the object 
and then freeing it via the commands

spline=gsl_spline_alloc(gsl_interp_cspline, BIN);  
gsl_spline_init(spline, array_x, array_y, BIN); 

\*commands

/*

gsl_spline_free(spline);


is very time consuming.
What I would like to do is allocating the object just once, i.e. when the 
function is called for the first time, and then proceed on up to the end
of the loop.
How can I do that ?

Thank you in advance
Best regards

Ruben Farinelli