[ublas] [patch] bug in matrix_binary::const_interator::operator +=

From: Gunter Winkler (guwi17_at_[hidden])
Date: 2005-06-24 06:38:50

Hallo,

the bug found by Vardan was caused by a wrong implementation of operator += () 
and operator -= () of matrix_binary. The increment and decrement operators 
were already dispatched depending on the underlying iterator types, but the 
+= and -= had the old behavior. The patch includes the quick fix to call ++ 
or -- as often as requested. A better fix would dispatch += the same way as 
++ and optimize it accordingly. Any volunteer?

mfg
Gunter