On Friday, 8 February 2013 at 19:24:55 UTC, simendsjo wrote:
On Friday, 8 February 2013 at 17:16:15 UTC, Nrgyzer wrote:
Hi guys,
I'm updated from DMD 2.060 to 2.061 and I just run into some
trouble by using associative arrays. Let's say I've the
following few lines:
string[string] myValues;
ref string getValue(string v) {
return myValues[v];
}
void main() {
getValue("myValue") = "myString";
}
I get a range violation in getValue() because the entry does
not exist. But as far as I know, this worked in 2.060 (no
range violation). One idea was to initialize the value in
getValue() if it does not exist, but my associative array
looks like:
string[string][][string] myValues;
... how to initialize this? So, is this a bug or is it my
mistake?
Did that really work before? Looks like a bug as you are
accessing an element that doesn't exist.
The following works:
import std.stdio;
void main() {
string[string][][string] myValues;
assert(myValues.length == 0);
myValues["a"] = new string[string][100]; // Doesn't have to
create 100 elements of course
assert(myValues["a"].length == 100);
assert(myValues["a"][0].length == 0);
myValues["a"][0]["b"] = "aoeu";
assert(myValues["a"][0]["b"] == "aoeu");
}
I downloaded 2.060, tried my example above and it works in 2.060
without any range exceptions. Using 2.061 throws me the range
exception (using the same code). I also tried the following (as
described in the documentation of AA's):
void main() {
int[string] b;
b["hello"] = 3;
}
This works for both versions... but I don't know why using a
method with ref-return value doesn't work anymore.
Thanks for your suggestion.
