[slang-users] Re: Stack underflow()

[Bernd Eggink <bernd.eggink@xxxxxxxxxx>]

Am 10.12.2019 um 00:51 schrieb Bernd Eggink:
> slsh> define f() {}
> slsh> () = f();
> Stack Underflow Error
>
> I wonder why this is considered an error. If "()=" means "pop anything 
> left on the stack", isn't "nothing" (in a mathematical sense) also 
> "anything"?

OK, ignore this, now I realize that I hadn't fully understood the return 
value mechanism. I re-read chapter 9 of the guide, which answers the 
question sufficiently.

-Bernd
--
http://www.sudrala.de
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