Subject: Re: [Boost-bugs] [Boost C++ Libraries] #1403: Enable copying boost::array to const
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2007-11-09 03:40:33
#1403: Enable copying boost::array to const
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Reporter: pop.atry_at_[hidden] | Owner:
Type: Feature Requests | Status: new
Milestone: To Be Determined | Component: None
Version: Boost 1.34.1 | Severity: Problem
Resolution: | Keywords:
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Comment (by steven_watanabe):
The only easy way I can see of implementing this feature
is to add a constructor. This breaks aggregate-ness.
There is one other way to do it, which I would rather not contemplate.
{{{
template<class Dest, class T>
Dest array_cast(const boost::array<T, 0>&) {
Dest result = {};
return(result);
}
template<class Dest, class T>
Dest array_cast(const boost::array<T, 1>& from) {
Dest result = {from[0]};
return(result);
}
template<class Dest, class T>
Dest array_cast(const boost::array<T, 2>& from) {
Dest result = {from[0], from[1]};
return(result);
}
// and so on
}}}
--
Ticket URL: <http://svn.boost.org/trac/boost/ticket/1403#comment:2>
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