Re: foreach for string[string]AA

[ikod via Digitalmars-d-learn]

On Tuesday, 28 February 2017 at 15:15:00 UTC, Anton Pastukhov 
wrote:
I can't see the logic in AA foreach order. Consider this code:
```
void main() {
    string[string] test = [
        "one": "1",
        "two": "2",
        "three": "3",
        "four": "4"
    ];

    import std.stdio:writeln;

    foreach(k, v; test) {
        writeln(k);
    }
}

Output:
three
two
one
four

I was sure output should be
one
two
three
four

AA implemented as hash table, so it doesn't preserve insertion 
order. You have to sort keys when you need:

import std.algorithm;
import std.stdio;
void main() {
        auto aa = ["one":1,
                           "two":2
                           ];
        foreach(k; sort(aa.keys)) {
                writeln(k);
        }
}