POP               457 ext/psych/yaml/yaml_private.h #define POP(context,stack)                                                      \
POP               123 ext/racc/cparse/cparse.c #define POP(s) rb_ary_pop(s)
POP               332 util.c         #define POP(ll,rr)  do { --top; (ll) = top->LL; (rr) = top->RR; } while (0)      /* Pop L,l,R,r */
POP                35 vm_insnhelper.h #define POP()   (DEC_SP(1))