New linked list

[Boris Wang]

why not make a feature:

    safe foreach( Person p; ....)


"Walter Bright" <newshound at digitalmars.com> дÈëÏûÏ¢ÐÂÎÅ:e3vq3l$1rp5$3 at digitaldaemon.com...
> Sean Kelly wrote:
>> Very cool.  One thing... does this work:
>>
>>     foreach( Person p; per.each )
>>     {
>>         if( p.age > 50 )
>>             p.listRemove();
>>     }
>>
>> ie. can you remove elements within a foreach?
>
> It's undefined behavior. foreach is entitled to assume that the aggregate 
> is a loop invariant, although the contents of the aggregate's elements can 
> change. This precludes things like resizing an array inside a foreach, 
> etc.