Boost Users :
Subject: Re: [Boost-users] [boost] [type traits] Extension to operator detection -> choose your preferred naming
From: alfC (alfredo.correa_at_[hidden])
Date: 2011-09-03 01:16:11
> The point I want to make is that if there were a uniform facility to
> > the result of a built-in operator over some arithmetic types then library
> > authors could do a better job at writting generic libraries on some
> > arithmetic types and combinations, for example
> > multiply_typeof_helper<double, int>::type --> double
> > I just wanted to make the connection between the two problems; and
> > solve the has_operator and typeof_operator problem together.
> The operator traits can detect if the operator return value can be
> converted to a given type but not the precise return type.
what do you mean by "it can't"? is that a limitation of the language? or the
can't the built-in type cases by hard coded, e.g.
typedef double type;
it can always be specialized, and for decltype compilers it can be by
template<class T1, class T2>
typedef decltype(T1()*T2()) type;
isn't this something that fits in type traits?
Boost-users list run by williamkempf at hotmail.com, kalb at libertysoft.com, bjorn.karlsson at readsoft.com, gregod at cs.rpi.edu, wekempf at cox.net