c++ - How do I find missing elements in an integer list? -


i want use template find missing numbers, this:

using type = find_arg_not_in_pack<range<1, 5>, 1, 2, 4, 5>;

and result should pack holding numbers aren't in arguments provided after range. in case should pack<3>. pack tuple non-type parameters, particularly integers. how can 1 this?

define type-list machinery result, pack, , specialize find_arg_not_in_pack case start of range identical first argument, result definition recursing on rest of argument list.


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