Re: NULL terminated strings

[Jim Langston <jlangston@xxxxxxxxxxxxxxxx>]

>From the help in PDM for Options(*String) (F4 on the D spec, F1 on
keywords field).

"...If a character expression is specified, then the compiler will copy the
value of the expression to a temporary pointer and add a null-terminator
at the end."

Regards,

Jim Langston

Joe Teff wrote:

> I'm not a C programmer and I'm a little confused with NULL terminated
> strings. If I see the following line of code, this is supposed to create a
> NULL terminated string, correct?
>
>       C                                 Eval             SomeFld = SomeText
> + x'00'
>
> I guess NULL doesn't mean the absence of a value, rather just all zeros.
>
> Where I get confused is the Options(*string) keyword on a procedure.
> Does that automatically append the x'00' onto the end of whatever
> non-blank text is in the field?
>
> Thanks,   Joe Teff

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