----- Original Message -----
From: "Hicham Mouline"
To:
Sent: Tuesday, January 19, 2010 4:22 PM
Subject: Re: [Boost-users] fusion struct adapt macro,construct the struct
from a fusion vector
What about:
template <typename Seq>
params(Seq const& seq,
typename boost::enable_if<
fusion::traits::is_sequence<Seq>
::type* = NULL);
?
Fantastic.
Here is the code I have (plz see below), but it seems there are issues
with const-ness that I don't understand.
Following my previous attempt, replacing the functor applied by foreach to
the zipped sequence by:
struct assignelt {
template <typename T>
void operator()( const vector2& seqpairs ) const
{
typedef vector2 pair_t;
const_cast(at_c<0, const pair_t>(seqpairs)) = at_c<1, const
pair_t>(seqpairs);
}
};
works.
I can now construct my struct params from an equivalent fusion sequence.
This constructor is identical for all my params struct.
I have structs params1 to params100
Is there a way to factorise this ctor and not repeat its definition in the
100 struct params?
Is this possible with a base struct templated on the derived struct?
rds,
