[boost] spirit : file_iterator and string

From: amerio (amerio_at_[hidden])
Date: 2003-04-08 06:54:57

Hi,
I'm trying to put a parsed file into a std::string

typedef file_iterator <char> IteratorT;
parse_info <IteratorT> _Info = parse (_Start,_End,_Rule [&Echo]);

void Echo (IteratorT const & rBegin, IteratorT const & rEnd)
{
string s0(rBegin, rEnd);    // <<-- this produces garbage !!!
std::cout << s0 << endl;
string s1; for_each(rBegin, rEnd, append(s1));    // <<-- this works as
expected
std::cout << s1 << endl;
}

I don't understand why string s0(rBegin, rEnd) does not work with
file_iterator.
It does work with "standard" iterator, so...
Maybe I overlooked something ?