Example Program
Rooted Iterators
Example for some functions for handling (rooted) iterators.
File "rooted_iterator.cpp"
A tutorial about the use of rooted iterators.

1 | #include <iostream>
2 | #include <seqan/sequence.h>
3 | #include <seqan/file.h>
4 |
5 | using namespace seqan;
6 |
7 | int main()
8 | {
9 | typedef String<char> TText;
10 | TText str = "abcdefg";

The rooted iterator can be specified by passing the iterator spec Rooted as a second argument.

11 | Iterator<TText, Rooted>::Type it = begin(str);

The same iterator spec can be used as a tag for functions that return an iterator, e.g. begin or end.

12 | it = begin(str, Rooted());

A rooted iterator "knows" its container, so it supports the function container.

13 | std::cout << container(it); //output: "abcdefg"
14 | goNext(it);

It also supports functions such as goBegin or position.

15 | std::cout << position(it); //output: 7
16 | return 0;
17 | }

See
end, container, Iterator Spec, Iterator, position
See Also
Iterator Basics
SeqAn - Sequence Analysis Library - www.seqan.de

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