C++ How to Reference Templated Functions using std::bind / std::function

Question

If you have a templated class or a templated function, (or combination of the two), how do you bind that function, (preserving the template type parameter)?

I was gi

Answer 1

If I understood you right... :)

What you want to do is not possible because for template void foo(T) functions foo() and foo are of different types and you can not create vector holding pointers to both that functions directly because vector is homogeneous container.

To overcome that we can use boost::variant<> to either store pointers to different types of functions or to store arguments of functions.

template void foo(T);
typedef boost::variant func_ptr_variant;
std::vector v;
v.push_back(foo);
v.push_back(foo);

typedef boost::variant argument;
std::vector

Unfortunately, in any case you will need to instantiate function templates before inserting them to container because C++ can not do code generation on the fly. I think that it is possible that you know all possible types of arguments that the function may be used with so that may be not a problem.