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#ifndef LIBHX_INTDIFF_HPP
#define LIBHX_INTDIFF_HPP 1
#include <algorithm>
namespace HX {
template<typename AIter, typename BIter, typename XIter,
typename YIter, typename ZIter>
void set_intersect_diff(AIter a_first, AIter a_last, BIter b_first,
BIter b_last, XIter xptr, YIter yptr, ZIter zptr)
{
while ((a_first != a_last) && (b_first != b_last)) {
if (*a_first < *b_first)
*xptr++ = *a_first++;
else if (*b_first < *a_first)
*yptr++ = *b_first++;
else {
*zptr++ = *a_first++;
++b_first;
}
}
std::copy(a_first, a_last, xptr);
std::copy(b_first, b_last, yptr);
}
}
#endif
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