The class template
std::integer_sequence<Type, Values...> represents a sequence of values of type
Type is one of the built-in integer types. These sequences are used when implementing class or function templates which benefit from positional access. The standard library also contains "factory" types which create ascending sequences of integer values just from the number of elements.
std::function: To wrap any element that is callable
Create a parameter pack consisting of integers
This modified text is an extract of the original Stack Overflow Documentation created by following contributors
and released under CC BY-SA 3.0