Why this zip not stop after iterated through the longest range? thanks!

import std.stdio, std.range ;
void main() {
    auto a = [1,2,3,4] ;
    auto b = [6,7,8,9] ;
    auto c = "ABCDE" ;   // <= longest range here
    auto d = "ZYXW" ;
    auto CNT = 0 ;
    foreach(p; zip(StoppingPolicy.longest, a,b,c, d))
        if(CNT++ < 30)
            writefln("%s %s %s %s", p[0],p[1],p[2], p[3]) ;
        else
            break ;
}

output:
1 6 A Z
2 7 B Y
3 8 C X
4 9 D W
0 0 E ￿
0 0 ￿ ￿
0 0 ￿ ￿ <= this continue infinitely if not supply a stopping _CNT_

tsukikage wrote:
> Why this zip not stop after iterated through the longest range? thanks!
> 
> import std.stdio, std.range ;
> void main() {
>     auto a = [1,2,3,4] ;
>     auto b = [6,7,8,9] ;
>     auto c = "ABCDE" ;   // <= longest range here
>     auto d = "ZYXW" ;
>     auto CNT = 0 ;
>     foreach(p; zip(StoppingPolicy.longest, a,b,c, d))
>         if(CNT++ < 30)
>             writefln("%s %s %s %s", p[0],p[1],p[2], p[3]) ;
>         else
>             break ;
> }
> 
> output:
> 1 6 A Z
> 2 7 B Y
> 3 8 C X
> 4 9 D W
> 0 0 E ￿
> 0 0 ￿ ￿
> 0 0 ￿ ￿ <= this continue infinitely if not supply a stopping _CNT_

note: ￿ is 0xffff (wchar init?) print as "%s"

tsukikage:

> Why this zip not stop after iterated through the longest range? thanks!

http://d.puremagic.com/issues/show_bug.cgi?id=5506

Bye,
bearophile

bearophile wrote:
> tsukikage:
> 
>> Why this zip not stop after iterated through the longest range? thanks!
> 
> http://d.puremagic.com/issues/show_bug.cgi?id=5506
> 
> Bye,
> bearophile

Thank you!