The MPL Reference Manual: vector

vector

Description

vector is a variadic, random access, extensible sequence of types that supports constant-time insertion and removal of elements at both ends, and linear-time insertion and removal of elements in the middle. On compilers that support the typeof extension, vector is the simplest and in many cases the most efficient sequence.

Sequence form	Header
Variadic	`#include <boost/mpl/vector.hpp>`
Numbered	`#include` n`.hpp>`

Model of

Expression semantics

In the following table, v is an instance of vector, pos and last are iterators into v, r is a Forward Sequence, n is an Integral Constant, and x and t₁,t₂,... t_n are arbitrary types.

Expression	Semantics
vector<t₁,t₂,... t_n> vectorn<t₁,t₂,... t_n>	`vector` of elements t₁,t₂,... t_n; see Variadic Sequence.
vector<t₁,t₂,... t_n>::type vectorn<t₁,t₂,... t_n>::type	Identical to `vector`n`<`t₁,t₂,... t_n`>`; see Variadic Sequence.
`begin::type`	An iterator pointing to the beginning of `v`; see Random Access Sequence.
`end::type`	An iterator pointing to the end of `v`; see Random Access Sequence.
`size::type`	The size of `v`; see Random Access Sequence.
`empty::type`	A boolean Integral Constant `c` such that `c::value == true` if and only if the sequence is empty; see Random Access Sequence.
`front::type`	The first element in `v`; see Random Access Sequence.
`back::type`	The last element in `v`; see Random Access Sequence.
`at::type`	The `n`th element from the beginning of `v`; see Random Access Sequence.
`insert::type`	A new `vector` of following elements: [`begin::type`, `pos`), `x`, [`pos`, `end::type`); see Extensible Sequence.
`insert_range::type`	A new `vector` of following elements: [`begin::type`, `pos`), [`begin::type`, `end::type`) [`pos`, `end::type`); see Extensible Sequence.
`erase::type`	A new `vector` of following elements: [`begin::type`, `pos`), [`next::type`, `end::type`); see Extensible Sequence.
`erase::type`	A new `vector` of following elements: [`begin::type`, `pos`), [`last`, `end::type`); see Extensible Sequence.
`clear::type`	An empty `vector`; see Extensible Sequence.
`push_back::type`	A new `vector` of following elements: [`begin::type`, `end::type`), `x`; see Back Extensible Sequence.
`pop_back::type`	A new `vector` of following elements: [`begin::type`, `prior< end::type >::type`); see Back Extensible Sequence.
`push_front::type`	A new `vector` of following elements: `x`, [`begin::type`, `end::type`); see Front Extensible Sequence.
`pop_front::type`	A new `vector` of following elements: [`next< begin::type >::type`, `end::type`); see Front Extensible Sequence.

Example

typedef vector floats;
typedef push_back::type types;

BOOST_MPL_ASSERT(( is_same< at_c::type, int > ));

Boost C++ Libraries

vector

Description

Header

Model of

Expression semantics

Example

See also