19 Jul
2005
19 Jul
'05
2:20 p.m.
Joel de Guzman wrote:
Jaakko Järvi wrote:
Yes, a null_type is passed to sig. This is because the signature of the zero argument lambda function (in lambda_functor class) signature is instantiated always, regardless of whether it is called or not. And there the argument list is just null_type. Hence, the return type deduction is not allowed to cause a compilation error in the case where the argument tuple to sig is null_type.
FYI, this is a typical problem. Phoenix-2 has fixed this nagging problem.
How?