Re: [Gimp-user] procedure overloading in scheme / script-fu

[Kevin Cozens <kevin ve3syb ca>]

On 12-09-18 06:42 PM, Gary Aitken wrote:
> I assumed from the scheme manual that procedure-overloading
> (in the form of different numbers of arguments) was permitted,
> since, for example, there are two versions of string->number.

Scheme is not an OOP language so it does not support procedure overloading. 
If you look closely, you will see that string->number and number->string can 
take an optional parameter, a radix to use during the conversion. The 
optional radix parameter is not currently supported for either 
string->number or number->string.

Code to add support for the radix was supplied to the TinyScheme project and 
is currently being reviewed so radix support may be added soon to Script-Fu.

> If you take the following code and run it in the script-fu console, it works;
> but replacing all occurrances of "foo2" with "foo"
> gets into an infinite loop (I guess; it never returns, in any case).

If you changed all foo2 to foo, then foo continually calls itself and the 
console will appear to hang.

--
Cheers!

Kevin.

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