Bug in usage of associative array: dynamic array with string as a key
FeepingCreature
feepingcreature at gmail.com
Fri Jun 30 19:58:39 UTC 2023
On Friday, 30 June 2023 at 19:05:23 UTC, Cecil Ward wrote:
> I have code roughly like the following:
>
> dstring str = "name"d;
> uint ordinal = (( str in Decls.ordinals ) !is null) ?
> Decls.ordinals[ str ] : -1;
>
> struct Decls
> {
> uint[ dstring] ordinals;
> }
>
> //and
> Decls.ordinals[ str ] = ordinal_counter++;
>
> The problem is that it always returns ordinal== -1 from the
> expression. Can you sort me out?
Impossible to tell without a complete repro, I'm afraid. The
expression, at least, looks correct at first glance.
Note that you can do `uint ordinal = Decls.ordinals.get(str,
-1);`.
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