public member function
<array>

std::array::data

      value_type* data() noexcept;
const value_type* data() const noexcept;
Get pointer to data
Returns a pointer to the first element in the array object.

Because elements in the array are stored in contiguous storage locations, the pointer retrieved can be offset to access any element in the array.

Parameters

none

Return Value

Pointer to the data contained by the array object.

If the array object is const-qualified, the function returns a pointer to const value_type. Otherwise, it returns a pointer to value_type.

Member type value_type is the type of the elements in the container, defined in array as an alias of its first template parameter (T).

Example

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// array::data
#include <iostream>
#include <cstring>
#include <array>

int main ()
{
  const char* cstr = "Test string";
  std::array<char,12> charray;

  std::memcpy (charray.data(),cstr,12);

  std::cout << charray.data() << '\n';

  return 0;
}


Output:
Test string

Complexity

Constant.

Iterator validity

No changes.

Data races

No contained elements are directly accessed by the call, but the pointer returned can be used to access or modify elements. Concurrently accessing or modifying different elements is safe.

Exception safety

No-throw guarantee: this member function never throws exceptions.

See also

  • 9281021542 2018-02-20
  • 632231541 2018-02-20
  • 9751491540 2018-02-20
  • 8333621539 2018-02-20
  • 995001538 2018-02-20
  • 6477441537 2018-02-20
  • 511981536 2018-02-19
  • 2072881535 2018-02-19
  • 6024461534 2018-02-19
  • 7594061533 2018-02-19
  • 9311341532 2018-02-19
  • 4928331531 2018-02-19
  • 38561530 2018-02-19
  • 7776611529 2018-02-19
  • 3038041528 2018-02-19
  • 9566341527 2018-02-19
  • 3936031526 2018-02-19
  • 9531111525 2018-02-19
  • 291211524 2018-02-19
  • 8962001523 2018-02-19