set_mark_bit_from_hdr 1255 gc/include/private/gc_priv.h # define set_mark_bit_from_hdr(hhdr,n) ((hhdr)->hb_marks[(n)>>1]) = 1
set_mark_bit_from_hdr 1260 gc/include/private/gc_priv.h # define set_mark_bit_from_hdr(hhdr,n) \