Re: Norm problem in Octave 3.4.0 (Mac?) (Moo)

[pantxo diribarne]

Hello,

I have also built an a 32bit Octave.app version on Mac OX X 10.5.8 with self-compiled dependencies and it used to exhibit the same norm problem. This speed problem is solved by setting optimization flags to "-O3" or "-O2" : running Vic's test gives similar results on my version  and ThomasTreichl's Octave.app (3.2.3)

norm2 speed test - octave 3.4.0
                          ellapsed times
                          mean      stdv
norm(x)               8.76e-03  2.07e-04
sqrt(sum(x .* x))     1.52e-02  1.04e-03

norm2 speed test - octave 3.2.3
                          ellapsed times
                          mean      stdv
norm(x)               8.93e-03  3.20e-04
sqrt(sum(x .* x))     1.65e-02  2.31e-03

Now the problem is that I obtain an error while launching make check: "invalid assignment to cs-list outside multiple assignment".
This problem was reported and discussed previously for 3.3.90 version (http://octave.1599824.n4.nabble.com/Octave-3-3-55-and-Octave-3-3-90-on-OSX-td3247286i60.html#a3336641) but no solution was found.
I also noticed that a with optimization flags set to "-O2" or "-O3" I obtain a warning at compilation time (liboctave) that doesn't appear if compiled without optimization flag :
Array.h:183: warning: ‘__base_ctor ’ is deprecated (declared at Array.h:179) 

I don't know wether it is related but I wanted to give all elements I had.

Pantxo