mirror of
https://github.com/urbit/shrub.git
synced 2024-12-20 01:01:37 +03:00
50 lines
707 B
C
50 lines
707 B
C
/* j/2/flop.c
|
|
**
|
|
** This file is in the public domain.
|
|
*/
|
|
#include "all.h"
|
|
|
|
|
|
/* functions
|
|
*/
|
|
u3_noun
|
|
u3_cqb_flop(u3_noun a)
|
|
{
|
|
u3_noun b = 0;
|
|
|
|
while ( 1 ) {
|
|
if ( u3_nul == a ) {
|
|
return b;
|
|
}
|
|
else if ( c3n == u3du(a) ) {
|
|
u3z(b);
|
|
|
|
return u3_cm_bail(c3__exit);
|
|
}
|
|
else {
|
|
b = u3nc(u3k(u3h(a)), b);
|
|
a = u3t(a);
|
|
}
|
|
}
|
|
}
|
|
u3_noun
|
|
u3_cwb_flop(u3_noun cor)
|
|
{
|
|
u3_noun a;
|
|
|
|
if ( u3_none == (a = u3_cr_at(u3_cv_sam, cor)) ) {
|
|
return u3_cm_bail(c3__exit);
|
|
} else {
|
|
return u3_cqb_flop(a);
|
|
}
|
|
}
|
|
u3_noun
|
|
u3_ckb_flop(u3_noun a)
|
|
{
|
|
u3_noun b = u3_cqb_flop(a);
|
|
|
|
u3z(a);
|
|
return b;
|
|
}
|
|
|