Function Enumerate

library/cpp/iterator/enumerate.h:88–90

//! Usage: for (auto [i, x] : Enumerate(container)) {...}
template <typename TContainerOrRef>
auto Enumerate(TContainerOrRef&& container) {
    return NPrivate::TEnumerator<TContainerOrRef, std::size_t>{std::forward<TContainerOrRef>(container)};
}

//! Usage: for (auto [i, x] : SEnumerate(container)) {...}
// The index is signed for codebases that prefer signed numerics (such as YTsaurus).