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compiler error for iterators

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compiler error for iterators, type conversion?

mattman059	7 May, 2008 - 07:14 PM Post #1
D.I.C Regular Joined: 23 Oct, 2006 Posts: 295	CODE vector<int>::iterator start = myVector.begin(); When I try to compile this i get Error C2440 which is a "Type conversion" error, but what I dont understand is the actual description of the error "Cannot Convert from std::_Vector_iterator<_Ty,_Alloc> TO std::_Vector_iterator<_Ty,_Alloc>" To me it seems like there should be no problem running that code, intuitively it should work unless there are problems with iterators and vectors.. any thoughts. This post has been edited by mattman059: 7 May, 2008 - 07:15 PM

skaoth	7 May, 2008 - 11:03 PM Post #2
D.I.C Regular Joined: 7 Nov, 2007 Posts: 269	is it possible for you to provide more code? Not much to work with there.

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mattman059	8 May, 2008 - 07:23 AM Post #3
D.I.C Regular Joined: 23 Oct, 2006 Posts: 295	Well you see, the rest of the code works perfectly. I was thinking about it and it might have something to do with the two dimensional vector that I declared.. CODE vector< vector<int> > myVector; But other than that, if i take the previous line out of my code, it works perfectly

skaoth	8 May, 2008 - 10:39 AM Post #4
D.I.C Regular Joined: 7 Nov, 2007 Posts: 269	It sounds like you found your problem. I asked for more code because I needed to see how you were declaring your vector object myVector. As you found CODE // 1) This is OK vector<int> v1; vector<int>::iterator v1Itr = v1.begin(); // 2) This is OK vector<vector<int>> v2; vector<vector<int>>::iterator v2Itr = v2.begin(); // 3) This causes the error your are seeing v1 = v2.begin(); where you were getting the error, The template type tells the iterator what the type is that will be held in the vector. If your first case it was simply a type mismatch

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