Multidimensional AA question
André via Digitalmars-d-learn
digitalmars-d-learn at puremagic.com
Sat Nov 28 10:52:13 PST 2015
On Friday, 27 November 2015 at 04:21:41 UTC, Nicholas Wilson
wrote:
> AA are weird in that AFAIK you need to "initialise" them before
> you try to look suff up in them else they crash. i.e.
> int[string] foo;
> // auto e = "1" in foo; // crash AA not initialised
> foo[ "blah"] = 0;
> foo.remove("blah");
> auto e = "1" in foo; //doesn't crash
>
> have you tried using aa.get(key,default);?
> i.e. contentAA.get(language,"english").get(section,
> "somedefault").get(section,0);
That doesn't work for my use case unfortunately. The object I am
getting of this call isn't the one I would like update at
[language][chapter][section]. I really need a pointer or
reference to the object that is held my the map.
> other than that are you likey to have missing sections? (i.e.
> do you need an AA for section or can you just use an array?)
> similarly; does chapter need to be indexed by string? can you
> get away with indexing by chapter number and storing an array
> of chapter names and looking that up when needed?
Chapter is indeed the chapter's title. But you are right - the
sections could be an usual array. Still the problem still is the
same for the first two dimensions.
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