Call function with part of variadic arguments

Question

Consider I have the following:

void bar(int a, int b)
{
}   

template
void foo(F function, Args... args>
{
    function(a         


        

Answer 1

Trivial and hardly extensible solution would be to create a wrapper, that will be called with all arguments, but will use only first few of them.

template
void foo(F function, Args... args)
{
    // with proper forwarding if needed
    auto lambda = [](auto fnc, auto first, auto second, auto...)
    {
        fnc(first, second);
    };
    lambda(function, args...);
}