Michael Marcin skrev:
Michael Marcin wrote:
Alex MDC wrote:
Have a look at the Call Traits library, in particular "param_type".
Never noticed that library. Thanks I'll have a look.
The documentation makes no mention of allowing extension for user defined types. It in fact has a table which clearly states that param_type is a const reference for all user defined types.
I would like to take classes like this and specialized param_type for them but the documentation for this library doesn't seem to allow for that.
That addition would be most well-come. As it is know, the trait is a bit naive. I think the trait should at least use pass by value if both a. the size of the types is smaller than sizeof(long double) b. the type is a POD For certain architectures, it might be beneficial to make pass-by value for larger types, on others perhaps only for smaller. Now, if that change was added, it also provided the customization that you needed, because you would simlpy customize is_pod. And that has other benefits on its own. John, is the user allowed to specialize is_pod? Thanks -Thorsten