On Friday, 23 January 2015 at 18:08:30 UTC, Andrei Alexandrescu
wrote:
So H.S. Teoh awesomely took
https://github.com/D-Programming-Language/phobos/pull/2878 to
completion. We now have a working and fast relational "group
by" facility.
See it at work!
----
#!/usr/bin/rdmd
void main()
{
import std.algorithm, std.stdio;
[293, 453, 600, 929, 339, 812, 222, 680, 529, 768]
.groupBy!(a => a & 1)
.writeln;
}
----
[[293, 453], [600], [929, 339], [812, 222, 680], [529], [768]]
Sorry if this a dumb question, but since you're grouping an array
according some rule, this shouldn't be:
[293, 453, 929, 339, 529][600, 812, 222, 680, 768]
?
Because then you have the array of "trues" and "falses" according
the condition (a & 1).
Matheus.
