cppreference.com

Namespaces

Variants

Actions

std::span<T,Extent>::data

From cppreference.com

< cpp‎ | container‎ | span

Compiler support

Freestanding and hosted

Standard library

Standard library headers

Named requirements

Feature test macros (C++20)

Language support library

Concepts library (C++20)

Diagnostics library

Memory management library

Metaprogramming library (C++11)

General utilities library

Containers library

Iterators library

Ranges library (C++20)

Algorithms library

Strings library

Text processing library

Numerics library

Date and time library

Input/output library

Filesystem library (C++17)

Concurrency support library (C++11)

Execution control library (C++26)

Technical specifications

External libraries

Containers library

(C++17)

(C++11)

(C++26)

(C++26)

(C++11)

Unordered associative

(C++11)

unordered_multiset

(C++11)

(C++11)

unordered_multimap

(C++11)

(C++23)

(C++23)

(C++23)

(C++23)

(C++20)

(C++23)

Tables

Iterator invalidation

Member function table

Non-member function table

Member functions

span::operator=

(C++26)

span::operator[]

span::data

span::beginspan::cbegin

(C++23)

span::endspan::cend

(C++23)

span::rbeginspan::crbegin

(C++23)

span::rendspan::crend

(C++23)

span::size_bytes

Non-member functions

as_bytesas_writable_bytes

Non-member constant

Deduction guides

constexpr pointer data() const noexcept;

(since C++20)

Returns a pointer to the beginning of the underlying sequence.

[edit] Return value

[edit] Example

Run this code

#include <iostream>
#include <span>
 
int main()
{
 constexpr char str[] = "ABCDEF\n";
 
 const std::span sp{str};
 
 for (auto n{sp.size()}; n != 2; --n)
 std::cout << sp.last(n).data();
}

Output:

ABCDEF
BCDEF
CDEF
DEF
EF
F

[edit] See also

constructs a span
(public member function) [edit]

Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/container/span/data&oldid=182286"