mirror of
https://github.com/ilyakooo0/urbit.git
synced 2024-12-24 23:44:56 +03:00
53 lines
997 B
C
53 lines
997 B
C
/* j/3/dis.c
|
|
**
|
|
** This file is in the public domain.
|
|
*/
|
|
#include "all.h"
|
|
|
|
|
|
/* functions
|
|
*/
|
|
u2_noun
|
|
u2_cqc_dis(u2_atom a,
|
|
u2_atom b)
|
|
{
|
|
c3_w lna_w = u2_cr_met(5, a);
|
|
c3_w lnb_w = u2_cr_met(5, b);
|
|
|
|
if ( (lna_w == 0) && (lnb_w == 0) ) {
|
|
return 0;
|
|
} else {
|
|
c3_w len_w = c3_max(lna_w, lnb_w);
|
|
c3_w* sal_w = u2_ca_slab(len_w);
|
|
|
|
if ( 0 == sal_w ) {
|
|
return u2_cm_bail(c3__fail);
|
|
}
|
|
else {
|
|
c3_w i_w;
|
|
|
|
u2_cr_chop(5, 0, lna_w, 0, sal_w, a);
|
|
|
|
for ( i_w = 0; i_w < len_w; i_w++ ) {
|
|
sal_w[i_w] &= (i_w >= lnb_w) ? 0 : u2_cr_word(i_w, b);
|
|
}
|
|
return u2_ca_malt(sal_w);
|
|
}
|
|
}
|
|
}
|
|
u2_noun
|
|
u2_cwc_dis(u2_noun cor)
|
|
{
|
|
u2_noun a, b;
|
|
|
|
if ( (u2_no == u2_cr_mean(cor, u2_cv_sam_2, &a, u2_cv_sam_3, &b, 0)) ||
|
|
(u2_no == u2ud(a)) ||
|
|
(u2_no == u2ud(b)) )
|
|
{
|
|
return u2_cm_bail(c3__exit);
|
|
} else {
|
|
return u2_cqc_dis(a, b);
|
|
}
|
|
}
|
|
|