From: Neal Becker (ndbecker2_at_[hidden])
Date: 2007-10-24 11:31:03
I'm a bit confused.
I'm working with blitz++. It has
template<typename T, int N> class Array ...
which already has a begin(), end(), but I can't use them. I'm specializing
boost::begin,end,etc to hide them (I don't want to modify the blitz Array
class)
If I specialize range_begin:
namespace boost {
template<typename T, int N>
inline typename blitz::array_iterator< blitz::Array<T,N> >::type
range_begin (blitz::Array<T,N> & a) {
return blitz::range_begin (a);
}
}
Then this doesn't work, it seems that boost::begin (blitz::Array<T,N>&)
finds the original begin(), but if I do:
namespace boost {
template<typename T, int N>
inline typename blitz::array_iterator< blitz::Array<T,N> >::type begin
(blitz::Array<T,N> & a) {
return blitz::range_begin (a);
}
}
it works as desired. My questions are:
1) Is this reasonable?
2) What is the advantage of using e.g., range_begin() instead of just
specializing boost::begin()?