[Boost-users] [iterator] error while accessing member of result of brackets-operator

9 Jan 2014

      Hello,

the following code does not compile with the last line in main(). The 
error message is

main.cpp: In function 'int main()':
main.cpp:37:8: error: 'boost::detail::operator_brackets_result<It, S, 
S&>::type' has no member named 'i'
   it[3].i = 0;
         ^

What could be the problem?

#include <boost/iterator/iterator_facade.hpp>

struct S
{
	int i;
	float f;
};

class It :
	public boost::iterator_facade<It, S, boost::random_access_traversal_tag>
{
private:
	friend class boost::iterator_core_access;

	static S s;

	reference dereference() const
	{ return s; }

	bool equal(It const&) const
	{ return true; }

	void increment() {}
	void decrement() {}
	void advance(difference_type n) {}

	difference_type distance_to(It const&) const
	{ return 0; }
};

int main()
{
	It it;
	(*(it + 3)).i = 0;
	S& s = it[3];
	s.i = 0;
	it[3].i = 0;
}

-- 
Sebastian Pfützner
s.pfuetzner@onlinehome.de
ICQ-ID: 39965036