https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61964
ghudson at mit dot edu changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |ghudson at mit dot edu --- Comment #2 from ghudson at mit dot edu --- How do you conclude that n->prev points to &heads[0]? node.prev receives the value (void *)head, where head is initialized to &heads[2]. I cannot see any uses of &heads[0] in the test program.