2 Jul
2008
2 Jul
'08
6:22 p.m.
David Abrahams wrote:
Eric Niebler wrote:
The Phoenix/Proto port in (Phoenix v3) uses BOOST_TYPEOF to deduce the the type of expressions involving operators, with the exception of the function call operator. For the function call operator, Phoenix v3 uses result_of to calculate the return type.
Interesting. Kinda makes sense, but could you explain the rationale anyway?
You mean, the rationale for using result_of instead of BOOST_TYPEOF for the function call operator? BOOST_TYPEOF can't perfectly distinguish between lvalues and rvalues. I fudge it where I have to, but with function calls no fudging is necessary because result_of presumably gives the right answer. -- Eric Niebler BoostPro Computing http://www.boostpro.com