Re: [Boost-users] [parameter] named template parameters

Subject: Re: [Boost-users] [parameter] named template parameters
From: Cromwell Enage (sponage_at_[hidden])
Date: 2013-10-03 10:54:45

On Monday, September 30, 2013 1:41 PM,

ilya shlyakhter wrote:


> seems like it hasn't been updated in some time -- is it still supported?

It's been working fine for me thus far.  Active tickets on the Trac haven't been showstoppers.

> when specifying type constraints for named template parameters,
> is it possible to specify constraints among several type parameters
> (the way graph_type is used in section 2.1.5.6.1 of the documentation)

Yes, the note at the end of that section should show you how.

> are there any issues in the interaction of Boost.Parameter and
> template specialization, i.e. how do I specialize the template on the
> values of some of the named parameters?


I generally employ parameterized inheritance instead: I use a value-based metafunction or a composition of such metafunctions to determine which base type (which would have been either the primary definition or the specialized one(s)) to derive from.

HTH,
Cromwell D. Enage