Re: [Boost-users] [lambda] Can't quite get the hang of it!

5 Dec 2008


      AMDG

Robert Jones wrote:
...
but I'd like the nested clip function to be fn( i, j ), so I tried this...
boost :: function< void( int, int ) > clip2 =
  boost :: lambda :: bind( clip, img -> m7[ _2 ][ _1 ], mpr[ _2 ][ _1 ] );
for( j = joff; j != jlast; ++ j )
  for( i = ioff; i != ilast; ++ i )
    clip2( i, j );
Which doesn't work. I think I need some boost::refs around the arrays 
I'm subscripting,
but I can't quite seem to get it right.
Boost.Lambda uses var.

var(img->m7)[_2][_1];

In Christ,
Steven Watanabe