[header][other] tuple (C++11)

*[header][other] tuple (C++11)

<tuple>

Tuple library

Tuples are objects that pack elements of -possibly- different types together in a single object, just like pair objects do for pairs of elements, but generalized for any number of elements.

Conceptually, they are similar to plain old data structures (C-like structs) but instead of having named data members, its elements are accessed by their order in the tuple.

The selection of particular elements within a tuple is done at the template-instantiation level, and thus, it must be specified at compile-time, with helper functions such as get and tie.

The tuple class is closely related to the pair class (defined in header <utility>): Tuples can be constructed from pairs, and pairs can be treated as tuples for certain purposes.

array containers also have certain tuple-like functionalities.

Classes

tuple

Tuple (class template )

Helper classes

tuple_size

Tuple size traits (class template )

tuple_element

Tuple element type (class template )

Functions

Object creation

make_tuple

Construct tuple (function template )

forward_as_tuple

Forward as tuple (function template )

tie

Tie arguments to tuple elements (function template )

tuple_cat

Concatenate tuples (function template )

Element access

get

Get element (function template )

Objects

ignore

Ignore assignment (object )

내용 출처 : http://www.cplusplus.com/reference/tuple/