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Null terminated or not, the string compare is done only with the shortest string which is not null-terminated (the literal left part of the comparison)
My point is that $str is futile and useless in this case
-----Original Message-----
From: RPG400-L <rpg400-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of John Yeung
Sent: Thursday, April 23, 2020 14:39
To: RPG programming on IBM i <rpg400-l@xxxxxxxxxxxxxxxxxx>
Subject: Re: %str() use discouraged?
On Thu, Apr 23, 2020 at 2:04 PM Francois Lavoie <Francois.Lavoie@xxxxxxxxxxxxxxxxxxxx> wrote:
The getenv function returns a pointer to a string (doc doesn't say
null-terminated string)
But it's a C function, and in C, strings are null-terminated.
So, my assumption is that the %str function is useless with getenv
Just this will work too:
getenv('some_var')='some_value';
It shouldn't, unless you've written your own ILE procedure called `getenv` which wraps up C's `getenv` such that the conversion to RPG-style string is encapsulated in the ILE procedure.
John Y.
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