------- Comment #21 from jacob at math dot jussieu dot fr 2007-11-07 20:58 ------- Hi, I'm the guy behind Eigen, from which the initial testcase is taken.
Would it help the compiler if I removed most of the "const" keywords in my code? I am asking because of the following. As Eigen has Lvalue expression templates(*), it is very cumbersome to enforce constness as many methods have to be written twice, once const-qualified and once not. Therefore I have given up enforcing constness, and am doing const_cast's at several places. Therefore many of the "const" keywords in Eigen are rather meaningless and could be removed. (*) for instance the following is allowed: matrix.row(i) += a * matrix.row(j). -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33604