mirror of
https://github.com/ilyakooo0/urbit.git
synced 2024-12-17 11:51:32 +03:00
77 lines
1.5 KiB
C
77 lines
1.5 KiB
C
/* jets/d/in_bif.c
|
|
**
|
|
*/
|
|
#include "all.h"
|
|
|
|
/* internal functions
|
|
*/
|
|
static
|
|
u3_noun _i_bif_putroot(u3_noun a,
|
|
u3_noun b)
|
|
{
|
|
if ( u3_nul == a) {
|
|
return u3nt(u3k(b), u3_nul, u3_nul);
|
|
}
|
|
else {
|
|
u3_noun n_a, l_a, r_a;
|
|
|
|
if ( (c3n == u3r_trel(a, &n_a, &l_a, &r_a)) ) {
|
|
return u3m_bail(c3__exit);
|
|
}
|
|
else if ( c3y == u3r_sing(b, n_a) ) {
|
|
return u3k(a);
|
|
}
|
|
else {
|
|
u3_noun c, n_c, l_c, r_c;
|
|
u3_noun d;
|
|
|
|
if ( c3y == u3qc_hor(b, n_a) ) {
|
|
c = _i_bif_putroot(l_a, b);
|
|
u3r_trel(c, &n_c, &l_c, &r_c);
|
|
d = u3nt(u3k(n_c),
|
|
u3k(l_c),
|
|
u3nt(u3k(n_a), u3k(r_c), u3k(r_a)));
|
|
u3z(c);
|
|
return d;
|
|
} else {
|
|
c = _i_bif_putroot(r_a, b);
|
|
u3r_trel(c, &n_c, &l_c, &r_c);
|
|
d = u3nt(u3k(n_c),
|
|
u3nt(u3k(n_a), u3k(l_a), u3k(l_c)),
|
|
u3k(r_c));
|
|
u3z(c);
|
|
return d;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* functions
|
|
*/
|
|
u3_noun u3wdi_bif(u3_noun cor)
|
|
{
|
|
u3_noun a, b;
|
|
if ( c3n == u3r_mean(cor, u3x_sam, &b, u3x_con_sam, &a, 0) ) {
|
|
return u3m_bail(c3__exit);
|
|
} else {
|
|
return u3qdi_bif(a, b);
|
|
}
|
|
}
|
|
|
|
u3_noun u3qdi_bif(u3_noun a,
|
|
u3_noun b)
|
|
{
|
|
u3_noun c, n_c, l_c, r_c;
|
|
u3_noun d;
|
|
|
|
c = _i_bif_putroot(a, b);
|
|
u3r_trel(c, &n_c, &l_c, &r_c);
|
|
d = u3nc(u3k(l_c), u3k(r_c));
|
|
u3z(c);
|
|
return d;
|
|
}
|
|
|
|
/*
|
|
u3_weak u3kdi_bif(u3_noun a, u3_noun b);
|
|
*/
|