April 29th, 2008

I broke slime

If you use a pre-1.0.8 SBCL with CVS SLIME, it won't work.

When I'm trying to debug functions, I often add (declare (optimize (debug 3))) to the top and then use "v" in sldb to jump directly to the location of the error in the source. Then I take out the declare bit after I'm done troubleshooting.

To automate this, I added an option to compilation that uses the new experimental SB-EXT:RESTRICT-COMPILER-POLICY function to compile with maximum debug. That is, C-u C-c C-c will recompile individual forms at debug 3. You don't have to manually add and remove it, and you don't have to run your whole system with elevated debug.

It only works on SBCL 1.0.8 and newer, though. I think it'd be handy for all backends, but I don't know how to add it.

You're doing it wrong

Last year, while creating AutoMotivator, I threw together a picture of John McCarthy with fake inspirational text. To my surprise, a lot of people really liked it.

I recently extended the software to create bigger AutoMotivator images for printing. Here are a few of the test images (click for full size):

Suitable for printing at US letter size

Suitable for printing at A4 size

Print one out on your company laser printer and hang it on your cubicle wall. Extra motivation guaranteed or your money back.