51 : _i(i), _j(j), _for_constraint(nconstraints) {}
86 s << o.
_i <<
" " << o.
_j;
Represent a pair of objects in Pair_Table.
friend std::ostream & operator<<(std::ostream &s, const Objpair &o)
Output stream operator, print the content of this Objpair to an output stream.
void has_constraint(std::vector< signed char >::size_type k, int val)
Set the value for a constraint to a value.
Objpair(int i, int j, int nconstraints)
Constructor.
std::vector< signed char > _for_constraint
Represent a pair of objects in Pair_Table.