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valarray
valarray
classes:
gslice
gslice_array
indirect_array
mask_array
slice
slice_array
valarray
global functions:
abs
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slice
slice::slice
member functions:
slice::size
slice::start
slice::stride


slice::start

public member function
size_t start() const;

Return start of slice

Returns the index of the first element in the valarray that is selected as part of the slice.

Parameters

none

Return value

Index of the first element that is part of the slice.
size_t is an unsigned integral type.

Example

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// slice::start example
#include <iostream>
#include <valarray>
using namespace std;
int main ()
{
  valarray<int> foo (10);
  for (int i=0; i<10; ++i) foo[i]=i;
  slice slc (2,4,1);
  valarray<int> bar = foo[slc];
  cout << "slice starting at " << slc.start() << ":\n";
  for (size_t n=0; n<bar.size(); n++)
	  cout << bar[n] << ' ';
  cout << endl;
  return 0;
}


Output:

slice starting at 2:
2 3 4 5

See also

slice::size Return size of slice (public member function)
slice::stride Return stride of slice (public member function)