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checked_array_iterator::operator-=

Decrements a specified offset from a checked_array_iterator.

checked_array_iterator<_Iterator>& operator-=(
   difference_type _Off
);

_Off

The offset by which to increment the iterator.

A reference to the element addressed by the checked_array_iterator.

For more information, see Checked Iterators.

// checked_array_iterators_op_minus_eq.cpp
// compile with: /EHsc
#include <vector>
#include <iostream>

int main() {
   using namespace stdext;
   using namespace std;
   int a[] = {6, 3, 77, 199, 222};
   int b[5];
   copy(a, a + 5, checked_array_iterator<int*>(b,5));

   checked_array_iterator<int*> checked_output_iterator(b,5);

   checked_output_iterator += 3;
   cout << *checked_output_iterator << endl;
   checked_output_iterator -= 2;
   cout << *checked_output_iterator << endl;
}
199
3

Header: <iterator>

Namespace: stdext

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