Ideas regarding flow control and loops

[downs]

Robert Fraser wrote:
> downs Wrote:
> 
>> PS:
>> module test17;
>> import std.stdio;
>>
>> void extwhile(lazy bool cond, void delegate() Body, void delegate()
>> Finally, void delegate() Else) {
>>   if (!cond()) Else();
>>   else {
>>     do Body(); while (cond());
>>     Finally();
>>   }
>> }
>>
>> void main() {
>>   bool colliding=true;
>>   int counter=0;
>>   extwhile(colliding,
>>     { writefln("Still colliding"); counter++; if (counter==3)
>> colliding=false; },
>>     { writefln("Done colliding"); },
>>     { writefln("Never collided"); }
>>   );
>> }
> 
> Heh, closures are already spreading their intoxicating power.

It doesn't actually use closures. Completely D 1.0 :)
Those { } things are short-hand for () { }, i.e. completely normal
delegate literals.
 --downs