From: Andy Little (andy_at_[hidden])
Date: 2005-04-09 08:10:08
"Jonathan Turkanis" <technews_at_[hidden]> wrote
> 2. What changes or additions would people like to see?
One could make some modifications to rational to make them it user friendly.
For example the following results in a compile time failure n VC7.1:
r1 + r2;
Naturally if a bigint rational was to be used, I would expect
rational<bigint>() + rational<int>() to work.
This is fairly trivial to accomplish using BOOST_TYPEOF:
eg something like
template <typename Lhs, typename Rhs>
typename boost::enable_if< // only for compat with current header
boost::is_same< Lhs, Rhs>
rational<typename BOOST_TYPEOF(Lhs() + Rhs())>
operator + (rational<Lhs> const & lhs, rational<Rhs> const& rhs);
FWIW this applies as well to other UDTs including interval and complex.
which are currently inconsistent
eg std:::complex<double> d ;
d * 2; // fails to compile
d *= 2; // compiles ok
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