Function Map

library/cpp/iterator/functools.h:41–43

    //! Usage: for (i32 x : Map([](i32 x) { return x * x; }, a)) {...}
    template <typename TMapper, typename TContainerOrRef>
    auto Map(TMapper&& mapper, TContainerOrRef&& container) {
        return ::MakeMappedRange(std::forward<TContainerOrRef>(container), std::forward<TMapper>(mapper));
    }

    //! Usage: for (auto i : Map<int>(floats)) {...}
    template <typename TMapResult, typename TContainerOrRef>