- typedef unsigned difference_type;
- typedef BIty pointer;
- typedef IIty reference;
-
- template<class M> InstIterator(M &m)
- : BBs(m.getBasicBlocks()), BB(BBs.begin()) { // begin ctor
- if (BB != BBs.end()) {
- BI = (*BB)->begin();
+ typedef signed difference_type;
+ typedef IIty* pointer;
+ typedef IIty& reference;
+
+ // Default constructor
+ InstIterator() {}
+
+ // Copy constructor...
+ template<typename A, typename B, typename C, typename D>
+ InstIterator(const InstIterator<A,B,C,D> &II)
+ : BBs(II.BBs), BB(II.BB), BI(II.BI) {}
+
+ template<typename A, typename B, typename C, typename D>
+ InstIterator(InstIterator<A,B,C,D> &II)
+ : BBs(II.BBs), BB(II.BB), BI(II.BI) {}
+
+ template<class M> InstIterator(M &m)
+ : BBs(&m.getBasicBlockList()), BB(BBs->begin()) { // begin ctor
+ if (BB != BBs->end()) {
+ BI = BB->begin();