34     typename MAT::iterator2 it2 = it1.begin();  in test_iterator()  local
37     typename MAT::iterator2 it2 = begin(it1, iterator1_tag());  in test_iterator()
40     for ( ; it2 != it2_end ; ++ it2 ) {  in test_iterator()
42       std::cout << "( " << it2.index1() << ", " << it2.index2() << ") " << std::flush;  in test_iterator()
44       * it2 = ( 10 * it2.index1() + it2.index2() );  in test_iterator()
60   typename MAT::iterator2 it2 = A.begin2();  in test_iterator2()  local
63   for ( ; it2 != it2_end; ++it2 ) {  in test_iterator2()
65     typename MAT::iterator1 it1 = it2.begin();  in test_iterator2()
66     typename MAT::iterator1 it1_end = it2.end();  in test_iterator2()
68     typename MAT::iterator1 it1 = begin(it2, iterator2_tag());  in test_iterator2()
69     typename MAT::iterator1 it1_end = end(it2, iterator2_tag());  in test_iterator2()
99     typename MAT::const_iterator2 it2 = it1.begin();  in test_iterator3()  local
102     typename MAT::const_iterator2 it2 = begin(it1, iterator1_tag());  in test_iterator3()
105     for ( ; it2 != it2_end ; ++ it2 ) {  in test_iterator3()
107       std::cout << "( " << it2.index1() << ", " << it2.index2() << ") " << std::flush;  in test_iterator3()
109       result += * it2;  in test_iterator3()