shrub/j/5/mat.c

54 lines
900 B
C
Raw Normal View History

2013-09-29 00:21:18 +04:00
/* j/3/mat.c
**
** This file is in the public domain.
*/
#include "all.h"
2014-09-04 07:10:43 +04:00
2013-09-29 00:21:18 +04:00
/* functions
*/
2014-09-06 00:13:24 +04:00
u3_noun
u3_cqe_mat(
u3_atom a)
2013-09-29 00:21:18 +04:00
{
2014-08-20 10:22:41 +04:00
if ( 0 == a ) {
2014-09-06 00:13:24 +04:00
return u3nc(1, 1);
2013-09-29 00:21:18 +04:00
} else {
2014-09-06 00:13:24 +04:00
u3_atom b = u3_cqc_met(0, a);
u3_atom c = u3_cqc_met(0, b);
u3_atom u, v, w, x, y, z;
u3_atom p, q;
2013-09-29 00:21:18 +04:00
2014-09-06 00:13:24 +04:00
u = u3_cqa_dec(c);
v = u3_cqa_add(c, c);
w = u3_cqc_bex(c);
x = u3_cqc_end(0, u, b);
y = u3_cqc_lsh(0, u, a);
z = u3_cqc_mix(x, y);
2013-09-29 00:21:18 +04:00
2014-09-06 00:13:24 +04:00
p = u3_cqa_add(v, b);
q = u3_cqc_cat(0, w, z);
2013-09-29 00:21:18 +04:00
2014-09-06 00:13:24 +04:00
u3z(u);
u3z(v);
u3z(w);
u3z(x);
u3z(y);
u3z(z);
2013-09-29 00:21:18 +04:00
2014-09-06 00:13:24 +04:00
return u3nc(p, q);
2013-09-29 00:21:18 +04:00
}
}
2014-09-06 00:13:24 +04:00
u3_noun
u3_cwe_mat(
u3_noun cor)
2013-09-29 00:21:18 +04:00
{
2014-09-06 00:13:24 +04:00
u3_noun a;
2013-09-29 00:21:18 +04:00
2014-09-06 00:13:24 +04:00
if ( (u3_none == (a = u3_cr_at(u3_cv_sam, cor))) ) {
return u3_cm_bail(c3__fail);
2013-09-29 00:21:18 +04:00
} else {
2014-09-06 00:13:24 +04:00
return u3_cqe_mat(a);
2013-09-29 00:21:18 +04:00
}
}