Re: [boost] determine first arg of callable

15 May 2013


      On 15/05/13 15:13, Oliver Kowalke wrote:
...
2013/5/15 Mathias Gaunard 
...
On 15/05/13 10:35, Oliver Kowalke wrote:
...
I need some help to extract the type of a callable which is passed as
argument to the ctor of X.
struct X
{
    template< typename Fn >
    X( Fn fn) {
         ... code which evaluates Fn and extracts the type of the first arg
of Fn
     }
};
You can't do that.
Just change your code to not require it.
that is not possible
Then I suggest you change the design.