[boost] ublas: matrix_range< matrix_range< T > > == matrix_range< T >

From: Toon Knapen (toon.knapen_at_[hidden])
Date: 2002-07-16 07:48:43

Currently a matrix_range of a matrix_range is different in type than just a 
matrix_range. Would'nt it be better that both are the same. IIRC, taking an 
element of matrix_range< matrix_range > > will require two dereferences while 
we could translate the ranges themselves when constructing piled ranges.

This would increase performance AFAICT and improve flexibility !

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