Re: "Subclassing" int in Pike code

On Tue, Sep 30, 2014 at 10:00 PM, Henrik Grubbström <[email protected]> wrote:
>> class x(int num)
>> {
>>    mixed cast(string type) {if (type=="int") return num;}
>>    int(0..1) is_type(string type) {if (type=="int") return 1;}
>>    #define lhs(x) mixed `##x(mixed ... others) {return
>> this_program(`##x(num,@others));}
>
>                ^^^^
> This won't do what you intend (it will just recurse until you run out of
> stack or into MAX_ARGS). You need to prefix the call with predef::.

You sure it won't? What it does is it defines `+() to call `+(num,
@others) - where num is the embedded integer - and then calls
this_program() on the result, to turn it into a hex-flagged integer.
It appears to work; is it working by accident?

ChrisA