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42 lines
704 B
C
42 lines
704 B
C
/* j/2/slag.c
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**
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** This file is in the public domain.
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*/
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#include "all.h"
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#include "../pit.h"
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/* functions
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*/
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u2_noun
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u2_cqb_slag(u2_atom a, u2_noun b)
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{
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if ( u2_ne(u2_co_is_cat(a)) ) {
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return u2_cm_bail(c3__fail);
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}
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else {
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c3_w len_w = a;
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while ( len_w ) {
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if ( u2_no == u2du(b) ) {
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return u2_nul;
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}
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b = u2t(b);
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len_w--;
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}
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return u2k(b);
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}
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}
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u2_noun
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u2_cwb_slag(u2_noun cor)
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{
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u2_noun a, b;
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if ( (u2_no == u2_cr_mean(cor, u2_cv_sam_2, &a, u2_cv_sam_3, &b, 0)) ||
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(u2_no == u2ud(a)) )
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{
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return u2_cm_bail(c3__exit);
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} else {
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return u2_cqb_slag(a, b);
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}
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}
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