question about passing associative array to a function
rbutler via Digitalmars-d-learn
digitalmars-d-learn at puremagic.com
Sun May 11 07:46:33 PDT 2014
I have searched and can not understand something about passing
AAs to a function.
I have reduced the gist of the question to a tiny program below.
If I put "ref" in the function stmt it works, i.e.:
ref int[int] aa
My confusion is that AAs are supposed to be passed as refs
anyway, so I do
not understand why I should have to use ref to make it work.
Related, it also works if I UN-comment the line d[9] = 9;
Thanks for any helpful comments you can make.
--rbutler
import std.stdio;
void test(int[int] aa, int x) {
aa[x] = x;
aa[8] = 8;
}
void main() {
int[int] d;
writeln(d.length);
// d[9] = 9;
test(d, 0);
writeln(d);
}
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