valarray::resize


public member function
void resize (size_t sz, T c = T());

Resize valarray

Resizes the valarray, changing its length to sz elements, and assigns the value c to each element.

After resizing, the array will contain sz elements with a value of c, no matter what the previous content was.

All pointers and references to elements of the valarray are invalidated.

Parameters

sz
Size of the valarray, in terms of the number of elements.
size_t is an unsigned integral type.
c
Value to be assigned to each of the elements of the resized array.
T is the template type of valarray (the elements' type).


Return value

none

Example

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// valarray::resize example
#include <iostream>
#include <valarray>
using namespace std;

int increment (int x) {return ++x;}

int main ()
{
  valarray<int> myarray (10,5);   // 10 10 10 10 10
  myarray.resize(3);              // 0  0  0

  for (size_t n=0; n<myarray.size(); n++)
	  cout << myarray[n] << ' ';
  cout << endl;

  return 0;
}


Output:

0 0 0


See also

valarray::size Return size (public member function)
valarray::valarray valarray constructor (public member function)
valarray::operator= Assign content (public member function)