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Weird problem , running same code twice make allegro freeze/crush

stillfish over 9 years ago

I have digged for a while but still have no idea why.

Following code can reproduce the problem,

the net name "M_A_DQ<0>" could be changed to any valid net.

r_net = axlDBFindByName('net "M_A_DQ<0>")

l_children = foreach(mapcan x r_net->branches x->children)

l_path = setof(x l_children equal(x->objType "path"))

l_segments = foreach(mapcan x l_path x->segments) ; works perfect when first run

l_segments = foreach(mapcan x l_path x->segments) ; make my allegro crush......

stillfish over 9 years ago

Well, i guess i know why.

foreach + map function use destructive modification function nconc to concatenate list.

therefore all other path's segments are append to first path->segments in database...
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