On Tue, Mar 9, 2010 at 1:42 PM, Gael Guennebaud
<gael.guennebaud@xxxxxxxxx> wrote:
Hi,
sorry I cannot reproduce. I tested with gcc and icc, with/without SSE, and in 32 and 64 bits....
Are you sure you have the latest trunk? I recently fixed a bug for 32 bits with SSE.
Argh! you are right. I was testing on a stale copy a couple of days old.. I confirm that trunk solves this issue. Apologies for the noise and waste of time.
Adolfo
gael
2010/3/9 Adolfo Rodríguez Tsouroukdissian
<adolfo.rodriguez@xxxxxxxxxxxxxxxx>
This example shows that something has recently broken in the implementation of lazy products with row-major matrices
typedef Eigen::Matrix<float, Eigen::Dynamic, Eigen::Dynamic, Eigen::RowMajor> Matrix;
Matrix A1(Matrix::Identity(2, 2));
Matrix A2(2, 1); A2 << 2, 3;
Matrix A3(2, 1);
A3.noalias() = A1 * A2; // Yields [2 2]' Wrong!
A3 = A1 * A2; // Yields [2 3]' OK!
This was working OK 1-2 weeks ago.
Adolfo
--
Adolfo Rodríguez Tsouroukdissian, Ph. D.
Robotics engineer
PAL ROBOTICS S.L
http://www.pal-robotics.com
Tel. +34.93.414.53.47
Fax.+34.93.209.11.09
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