std::array::fill

void fill (const value_type& val);

Fill array with value

Sets val as the value for all the elements in the array object.

Parameters

val: Value to fill the array with.
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).

Return value

none

Example

// array::fill example
#include <iostream>
#include <array>

int main () {
  std::array<int,6> myarray;

  myarray.fill(5);

  std::cout << "myarray contains:";
  for ( int& x : myarray) { std::cout << ' ' << x; }

  std::cout << '\n';

  return 0;
}

Output:

myarray contains: 5 5 5 5 5 5

Complexity

Linear: Performs as many assignment operations as the size of the array object.

Iterator validity

No changes.

Data races

All contained elements are modified.

Exception safety

Basic guarantee: if an exception is thrown, the container is in a valid state.
It throws if the assignment of any element throws.