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Subject: Re: [Boost-users] [MultiIndex] is it possible to create multi-key key-extractors?
From: Steven Watanabe (watanabesj_at_[hidden])
Date: 2010-08-08 20:29:49


Mostafa wrote:
> For the following struct:
> struct Flower
> {
> int type;
> string name;
> std::list<string> aliases;
> };
> I want to create a multiindexed container that indexes Flower objects
> by type, name, and aliases, where aliases is some iteratable
> collection of strings. I just don't know if it's possible to create a
> multi-key key-extractor for aliases. So far I've come up with the
> following:

I assume that you want to be able to look up
the Flower from a string, which should be
one of the aliases? You can't do this with
multi-index. A single object corresponds to
a single key.

In Christ,
Steven Watanabe

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