advance

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#### advance

###### Description

Moves an iterator by a specified distance.

###### Synopsis

    template<
        typename I,
        typename M
        >
    typename result_of::advance<I, M>::type advance(I const& i);

Table 1.6. Parameters

Parameter | Requirement | Description
--- | --- | ---
`i` | Model of Forward Iterator | Iterator to move relative to
`N` | An MPL Integral Constant | Number of positions to move

###### Expression Semantics

    advance<M>(i);

Return type: A model of the same iterator concept as `i`.

Semantics: Returns an iterator to the element `M` positions from `i`. If `i` is a Bidirectional Iterator then `M` may be negative.

###### Header

    #include <boost/fusion/iterator/advance.hpp>
    #include <boost/fusion/include/advance.hpp>

###### Example

    typedef vector<int,int,int> vec;

    vec v(1,2,3);
    assert(deref(advance<mpl::int_<2> >(begin(v))) == 3);