mlock bug

[Ben Abbott]

"mlock" appears to not function for my installation.

---------------------------
function y = test_mlock (x)
   persistent s = 0
   mlock;
   if (nargin > 0)
     s = x;
   endif
   y = s;
endfunction
---------------------------

octave:1> test_mlock
ans = 0
octave:2> test_mlock(1)
ans =  1
octave:3> test_mlock
ans =  1
octave:4> clear all
octave:5> test_mlock
ans = 0
octave:6> ver
----------------------------------------------------------------------
GNU Octave Version 3.0.0+
GNU Octave License: GNU General Public License
Operating System: Darwin 9.2.0 Darwin Kernel Version 9.2.0: Tue Feb  5  
16:13:22 PST 2008; root:xnu-1228.3.13~1/RELEASE_I386 i386
----------------------------------------------------------------------

Should not the answer to line 5 still be "1"?

Ben
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