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My bad, I mistook the "left-side" of an expression because if was on the left-side of the comparison
-----Original Message-----
From: RPG400-L <rpg400-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of John Yeung
Sent: Thursday, April 23, 2020 15:04
To: RPG programming on IBM i <rpg400-l@xxxxxxxxxxxxxxxxxx>
Subject: Re: %str() use discouraged?
On Thu, Apr 23, 2020 at 2:48 PM Francois Lavoie <Francois.Lavoie@xxxxxxxxxxxxxxxxxxxx> wrote:
Null terminated or not, the string compare is done only with the
shortest string which is not null-terminated (the literal *right* part
of the comparison)
No, the return value of a straightforward call to C's `getenv` is a POINTER. It's not even some bytes that represent characters, plus a null byte. It's the *address* of those bytes.
My point is that $str is futile and useless in this case
So, one of the crucial aspects of %STR is that it takes a pointer as input. You need to handle that pointer somehow. %STR is a very convenient way to do that, and in fact was designed EXACTLY for this kind of thing.
John Y.
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