...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Deferences an iterator.
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 |
deref(i);
Return type: result_of::deref<I>::type
Semantics: Dereferences the iterator i.
#include <boost/fusion/iterator/deref.hpp> #include <boost/fusion/include/deref.hpp>
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);