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Asked: 2026-06-17T16:47:28+00:00

I know boost MPL list or vectors have maximum lengths which are semi definable

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I know boost MPL list or vectors have maximum lengths which are semi definable but after about 30 elements the compiler hates me. How many elements can a Loki sequence have and is it user definable?

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  1. Editorial Team

    The implementation shows 18 hidden template parameters, so this should be the upper limit

         template
     <
         typename T1  = NullType, typename T2  = NullType, typename T3  = NullType,
         typename T4  = NullType, typename T5  = NullType, typename T6  = NullType,
         typename T7  = NullType, typename T8  = NullType, typename T9  = NullType,
         typename T10 = NullType, typename T11 = NullType, typename T12 = NullType,
         typename T13 = NullType, typename T14 = NullType, typename T15 = NullType,
         typename T16 = NullType, typename T17 = NullType, typename T18 = NullType
     > 
     struct MakeTypelist { /* stuff */ };
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