[intseq.intseq] # 21 Metaprogramming library [[meta]](./#meta) ## 21.2 Compile-time integer sequences [[intseq]](intseq#intseq) ### 21.2.2 Class template integer_sequence [intseq.intseq] [🔗](#lib:integer_sequence) namespace std {template struct integer_sequence {using value_type = T; static constexpr size_t size() noexcept { return sizeof...(I); }};} [1](#1) [#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/meta.tex#L43) *Mandates*: T is an integer type[.](#1.sentence-1)