Hello. I'm new to C++ and I just learned how to use vectors and lists and indices and iterators, but i'm confused about iterators. Mainly, why should I use them instead of indices? They seem to add more complexity to accomplish the same thing as using indices... so could someone please clarify for me?
falcon60
0
Newbie Poster
Recommended Answers
Jump to PostWhen using list, you have to use iterators. When using vectors you
have a choice of using index or iterators, usually you should pick the index
version( which means use the operator [] ). The STL uses iterators
to generalize their functions. For example using std::sort(..), it takes in
a …
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mrnutty
761
Senior Poster
When using list, you have to use iterators. When using vectors you
have a choice of using index or iterators, usually you should pick the index
version( which means use the operator [] ). The STL uses iterators
to generalize their functions. For example using std::sort(..), it takes in
a begin and a end iterator. That means that the algorithm stl uses does not have
make different algorithms for different containers.
Salem
5,138
Posting Sage
Can you use an index to access a list?
Can an iterator ever be out of bound on a vector?
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