[boost] [iterator] operator_arrow_proxy constructor should be templated

From: Felipe Magno de Almeida (felipe.m.almeida_at_[hidden])
Date: 2008-03-28 17:00:14

Hello,

operator_arrow_proxy exists to allow a T* to be created for input_iterators, but
its constructor is not templated, so it is not possible to create a T
from whatever is received.

Making operator_arrow_proxy templated solves the problem.

Regards,
-- 
Felipe Magno de Almeida