Re: [slang-users] is_defined

[Bernd Eggink <bernd.eggink@xxxxxxxxxx>]

On 28.11.20 21:27, Morten Bo Johansen wrote:
> Hi
>
> If I do
>
>    if (is_defined ("foo"))
>      foo ();
>      
> and "foo" is not defined, then this notwithstanding, an error
> is thrown: "foo is undefined".
>
> This shouldn't happen, IMO, since the condition was not met,
> and then the statement should be silently ignored and no error
> thrown.

Morten,

I think the compiler is right: In the last statement, foo(), foo is a 
(syntactically) undefined name. This is an error, no matter if you check 
it later (at run time). Apparently there is no pre-processor here.

Regards,
Bernd


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