[Boost-users] Re: FOREACH with maps

From: Martin (adrianm_at_[hidden])
Date: 2005-05-11 00:13:30

>  map<int,int> m;
>  ...
>  FOREACH (map<int,int>::value_type i, m) {...}  // compiles
>  map<int,int>::value_type i;
>  FOREACH (i, m) {...}                     // COMPILE ERROR

Why not

map<int,int>::value_type& i;
FOREACH (i, m) {...}