mirror of
https://github.com/ilyakooo0/urbit.git
synced 2024-12-24 07:26:51 +03:00
64 lines
1.2 KiB
C
64 lines
1.2 KiB
C
/* j/4/by_has.c
|
|
**
|
|
** This file is in the public domain.
|
|
*/
|
|
#include "all.h"
|
|
|
|
|
|
/* functions
|
|
*/
|
|
u3_bean
|
|
u3_cqdb_has(
|
|
u3_noun a,
|
|
u3_noun b)
|
|
{
|
|
if ( u3_nul == a ) {
|
|
return u3_no;
|
|
}
|
|
else {
|
|
u3_noun l_a, n_a, r_a;
|
|
u3_noun pn_a, qn_a;
|
|
|
|
if ( (u3_no == u3_cr_trel(a, &n_a, &l_a, &r_a)) ||
|
|
(u3_no == u3_cr_cell(n_a, &pn_a, &qn_a)) )
|
|
{
|
|
return u3_cm_bail(c3__exit);
|
|
}
|
|
else {
|
|
if ( (u3_yes == u3_cr_sing(b, pn_a)) ) {
|
|
return u3_yes;
|
|
}
|
|
else {
|
|
if ( u3_yes == u3_cqc_gor(b, pn_a) ) {
|
|
return u3_cqdb_has(l_a, b);
|
|
}
|
|
else return u3_cqdb_has(r_a, b);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
u3_noun
|
|
u3_cwdb_has(
|
|
u3_noun cor)
|
|
{
|
|
u3_noun a, b;
|
|
|
|
if ( u3_no == u3_cr_mean(cor, u3_cv_sam, &b, u3_cv_con_sam, &a, 0) ) {
|
|
return u3_cm_bail(c3__exit);
|
|
} else {
|
|
return u3_cqdb_has(a, b);
|
|
}
|
|
}
|
|
u3_bean
|
|
u3_ckdb_has(u3_noun a, u3_noun b)
|
|
{
|
|
u3_weak c = u3_cqdb_has(a, b);
|
|
|
|
u3z(a); u3z(b);
|
|
if ( u3_none == c ) {
|
|
return u3_cm_bail(c3__exit);
|
|
}
|
|
else return c;
|
|
}
|
|
|