New answers tagged template
2
Shims are wonderful
I recommend using a shim to offload all the logic to a function manipulating a list (rather than a pack) of arguments. As a bonus, you'll also be able to push the bulk of the implementation into a .cpp file.
Essentially, your goal is to invoke:
namespace details {
class Argument {
public:
virtual void print(std::ostream& out) ...
8
General design
Currently, your function is defined to have "undefined behavior" if the number of arguments is wrong. This is sub-optimal. Checking is trivial in this case, so report the problem in some way instead of producing strange output.
I could make it a run-time error, but that would add run-time cost and
thus violate C++'s philosophy of ...
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