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From: Sergei Politov (spolitov_at_[hidden])
Date: 2008-04-06 00:16:01

Steven Watanabe <watanabesj <at>> writes:

> Sergei Politov wrote:
> > For provided example, the usage of this class is the following:
> > template<class T>
> > struct make_vector {
> > typedef std::vector<T> type;
> > };
> >
> > typedef mstd::map_gen<boost::mpl::vector<int, char>, make_vector>::type
> > my_map;
> >
> You should probably use an mpl lambda expression
> mstd::map_gen<boost::mpl::vector<int, char>, make_vector<boost::mpl::_1>
> >::type
  Sorry, I'm not very familiar with mpl::lambda, as far as I understand to
write make_vector<boost::mpl::_> I should support mpl::lambda in make_vector.
If so it is not neccessary, as soon as it is just example, and it does not
belong to internal part of map_gen.
> > In other words it takes some fusion sequence and metafunction.
> MPL sequence? There shouldn't be any runtime information associated
> with the key.
  I meant: "fully conforming fusion sequences". As soon as it is possible to
adapt mpl sequence to fusion sequence, I suggest it is better to require fusion
sequence concept rather mpl sequence concept. Even runtime information is not
used. It produces no overhead, but makes map_gen more flexible.

> In Christ,
> Steven Watanabe
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