Re: 'RETURN'ing > 512

>Subject: 'RETURN'ing > 512 >Date: Thu, 10 Feb 1994 17:52:10 -0800 (PST) >From: Robert Minter <rob@dssmktg.com> >X-Informix-List-Id: <list.3496> > >Is it just weird to me or why is it that you can pass a variable > 512 bytes >to another function, and you can return INTO a variable defined > 512 bytes, >but you can't return a variable > 512 bytes? It was just a weird consequence of the way that strings were returned from functions. When error -4518 was expunged in version 4.12, the recoding also permitted error -4517 to be removed, and any string which you can declare can also be returned in its entirety. As a separate bug removal exercise, you cannot declare character strings with lengths outside the range 1..32767. A minor critique of the coding style: > FOR i = 2 to 2048 > LET str = str CLIPPED,"A" > END FOR This would be better written as: FOR i = 2 TO 2048 LET str[i] = "A" END FOR Yours, Jonathan Leffler (johnl@informix.com) #include <disclaimer.h> # Here is a revised version of Robert Minter's program which works without # error on 4.12, but produces error -4517 in 4.11. MAIN CALL func1() END MAIN FUNCTION func1() DEFINE str CHAR(2048), i SMALLINT LET str = "A" FOR i = 2 to 2048 LET str[i] = "A" END FOR LET str = func2(str) DISPLAY "String = ", str END FUNCTION FUNCTION func2(str) DEFINE str CHAR(2048), i SMALLINT DISPLAY "String = ", str CLIPPED LET str = "B" FOR i = 2 to 2048 LET str[i] = "B" END FOR RETURN str END FUNCTION