请问STL里的set::iterator 有没有"=" 和"!="运算符操作啊.为什么我的程序会有
e:\jmspmesh\vertex.cpp(34) : error C2679: binary '=' : no operator defined which takes a right-hand operand of type 'class std::_Tree<int,int,struct std::set<int,struct std::less<int>,class std::allocator<int> >::_Kfn,struct std::less<int>,class std
::allocator<int> >::const_iterator' (or there is no acceptable conversion)
e:\jmspmesh\vertex.cpp(34) : error C2679: binary '!=' : no operator defined which takes a right-hand operand of type 'class std::_Tree<int,int,struct std::set<int,struct std::less<int>,class std::allocator<int> >::_Kfn,struct std::less<int>,class st
d::allocator<int> >::const_iterator' (or there is no acceptable conversion)
这样的错误呢?怎么改?还是需要覆盖一下呢?
e:\jmspmesh\vertex.cpp(34) : error C2679: binary '=' : no operator defined which takes a right-hand operand of type 'class std::_Tree<int,int,struct std::set<int,struct std::less<int>,class std::allocator<int> >::_Kfn,struct std::less<int>,class std
::allocator<int> >::const_iterator' (or there is no acceptable conversion)
e:\jmspmesh\vertex.cpp(34) : error C2679: binary '!=' : no operator defined which takes a right-hand operand of type 'class std::_Tree<int,int,struct std::set<int,struct std::less<int>,class std::allocator<int> >::_Kfn,struct std::less<int>,class st
d::allocator<int> >::const_iterator' (or there is no acceptable conversion)
这样的错误呢?怎么改?还是需要覆盖一下呢?
set::iterator last;
set::iterator first;
last = first;
last != first;
这样写都是对的.