Re: [GENERAL] Problem with C functions ?

[having found this topic irrelevant to INTERFACES, I'm not posting my reply there]

> Hi there,
>
> I compiled a C-funtion to compute the azimuth of a LSEG but the function
> never
> returns the correct value

>   double ori;
> ....
>   return( ori );
>

The right way to do it would be:

#include "postgres.h"
#include "utils/palloc.h"

    float64 ori = (float64) palloc(sizeof(float64data));

    *ori = (float64) .... /* double type expression */

    return ( ori );
}


--Gene