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deref

Description

Deferences an iterator.

Synopsis
template<
    typename I
    >
typename result_of::deref<I>::type deref(I const& i);

Table 1.2. Parameters

Parameter

Requirement

Description

i

Model of Forward Iterator

Operation's argument


Expression Semantics
deref(i);

Return type: result_of::deref<I>::type

Semantics: Dereferences the iterator i.

Header
#include <boost/fusion/iterator/deref.hpp>
#include <boost/fusion/include/deref.hpp>
Example
typedef vector<int,int&> vec;

int i(0);
vec v(1,i);
assert(deref(begin(v)) == 1);
assert(deref(next(begin(v))) == 0);
assert(&(deref(next(begin(v)))) == &i);

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