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(C++) const_iterator

Common typedef in containers for an iterator-type that can only read the element it is located at.

#include <vector>

const std::vector<int> v(10,0);

const std::vector<int>::const_iterator i = v.begin();

Closer inspection (of vector.h for example) yields the following typedefs:

typedef _TYPENAME __value_alloc_type::const_pointer const_iterator;

typedef const T* const_pointer;

This concludes that the following two data types are equivalent:

std::vector<int>::const_iterator DataTypeOne;

const int * DataTypeOne;

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