slice::slice

slice ();
slice (size_t start, size_t length, size_t stride);
slice (const slice& slc);

slice constructor

Parameters

start

Index of the first element in the slice.
The index of the first element in a valarray is 0, not 1.
size_t is an unsigned integral type.

length

Number of elements in the slice.
size_t is an unsigned integral type.

stride

Separation between the elements selected into the slice.
size_t is an unsigned integral type.

slc

Slice object (copy constructor).

Example

// slice::slice example
#include <iostream>
#include <valarray>
using namespace std;
int main ()
{
  valarray<int> foo (12);
  for (int i=0; i<12; ++i) foo[i]=i;
  slice first;
  slice second (2,3,4);
  slice third (second);
  valarray<int> bar = foo[third];
  for (size_t n=0; n<bar.size(); n++)
	  cout << bar[n] << ' ';
  cout << endl;
  return 0;
}

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See also