Re: NULL in variable defined AS STRING

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Try the latest SVN ?

On Mon, 28 Apr 2025 at 08:09, Iwan AB <[email protected]> wrote:

> Dear Mike, please consider the following code:
>
> MAIN
>     DEFINE  s1 STRING, s2 CHAR(100)
>
>     LET s1 = NULL
>     IF s1 IS NULL THEN
>         DISPLAY "s1 IS NULL!"
>     ELSE
>         DISPLAY "s1 IS NOT NULL!"
>     END IF
>
>     LET s2 = NULL
>     IF s2 IS NULL THEN
>         DISPLAY "s2 IS NULL!"
>     ELSE
>         DISPLAY "s2 IS NOT NULL!"
>     END IF
>
> END MAIN
>
> it displays s1 IS NOT NULL! and s2 IS NULL, why is that?
>
> Best regards,
>
> Iwan Abu Bakar
> _______________________________________________
> Aubit4gl-discuss mailing list
> [email protected]
> https://lists.sourceforge.net/lists/listinfo/aubit4gl-discuss
>

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<div dir=3D"ltr">Try the latest SVN ?</div><br><div class=3D"gmail_quote gm=
ail_quote_container"><div dir=3D"ltr" class=3D"gmail_attr">On Mon, 28 Apr 2=
025 at 08:09, Iwan AB &lt;<a href=3D"mailto:[email protected]">iw87cs@gmail.=
com</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"marg=
in:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1e=
x"><div dir=3D"ltr">Dear Mike, please consider the following code: <br><br>=
MAIN<br>=C2=A0 =C2=A0 DEFINE =C2=A0s1 STRING, s2 CHAR(100)<br><br>=C2=A0 =
=C2=A0 LET s1 =3D NULL<br>=C2=A0 =C2=A0 IF s1 IS NULL THEN<br>=C2=A0 =C2=A0=
 =C2=A0 =C2=A0 DISPLAY &quot;s1 IS NULL!&quot;<br>=C2=A0 =C2=A0 ELSE<br>=C2=
=A0 =C2=A0 =C2=A0 =C2=A0 DISPLAY &quot;s1 IS NOT NULL!&quot;<br>=C2=A0 =C2=
=A0 END IF<br><br>=C2=A0 =C2=A0 LET s2 =3D NULL<br>=C2=A0 =C2=A0 IF s2 IS N=
ULL THEN<br>=C2=A0 =C2=A0 =C2=A0 =C2=A0 DISPLAY &quot;s2 IS NULL!&quot;<br>=
=C2=A0 =C2=A0 ELSE<br>=C2=A0 =C2=A0 =C2=A0 =C2=A0 DISPLAY &quot;s2 IS NOT N=
ULL!&quot;<br>=C2=A0 =C2=A0 END IF<br><br>END MAIN<br><br>it displays s1 IS=
 NOT NULL! and s2 IS NULL, why is that?<div><br></div><div>Best regards,</d=
iv><div><br></div><div>Iwan Abu Bakar</div></div>
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>[email protected]</a><br>
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tinfo/aubit4gl-discuss</a><br>
</blockquote></div>

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