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Problem: - It's annoying to make a type list just to index into it. - Boost.MP11 doesn't provide `mp_at` that works on value lists. Solution: - Introduce `nth_t<Index, Ts...>` and `nth_v<Index, Vs...>` to give the nth type or value of a pack respectively.
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Problem:
mp_atthat works on value lists.Solution:
nth_t<Index, Ts...>andnth_v<Index, Vs...>to give the nth type or value of a pack respectively.