Troubles using Pro*C

I´ve the next trouble in Pro*C.

A function X is declared as:

char *X(char *);

but the problem is that, when I read the return value from X:

sprintf(buffer,X(arg)) (with arg any string)

I only get the first 16 character in buffer!!!! (X must return 26 or more characters)

[Quoted] My question is: Is there any compilation flag related with this? Or is this simply a bug in Pro*C?

In fact, if I replace my declaration of X, to a procedure

X(arg,buffer)

it works!!!! and returns the correct number of characters in buffer.

Even more, if I print the return value of X (declared as a function) from inside X, I mean:

char *X(char *arg)
{
 ....

 printf("%s",RETURN_VALUE);
 return(RETURN_VALUE);

}

I got the correct number of characters in RETURN_VALUE, but the returned value is wrong!!!

Thanks for your help

I´m using Oracle 8.1.6 on an HP-UX 11.00 (64 bits)

-- 
Atte.
Álvaro Palma Aste
Grupo de Ing Biomédica - U. de Chile
apalma_at_cipres.cec.uchile.cl.no.spam