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51 lines
986 B
C
51 lines
986 B
C
/* j/3/rev.c
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**
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*/
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#include "all.h"
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/* functions
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*/
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u3_noun
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u3qc_rev(u3_atom boz,
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u3_atom len,
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u3_atom dat)
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{
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if ( !_(u3a_is_cat(boz)) || (boz >= 32) ||
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!_(u3a_is_cat(len)) ) {
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return u3m_bail(c3__fail);
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}
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dat = u3qc_end(boz, len, dat);
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c3_w met = u3r_met(boz, dat);
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return u3kc_lsh(boz, (len - met), u3kc_swp(boz, dat));
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}
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u3_noun
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u3wc_rev(u3_noun cor)
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{
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u3_noun boz, len, dat;
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if ( (c3n == u3r_mean(cor, u3x_sam_2, &boz,
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u3x_sam_6, &len,
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u3x_sam_7, &dat, 0)) ||
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(c3n == u3ud(boz)) ||
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(c3n == u3ud(len)) ||
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(c3n == u3ud(dat)) )
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{
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return u3m_bail(c3__exit);
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} else {
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return u3qc_rev(boz, len, dat);
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}
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}
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u3_noun
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u3kc_rev(u3_atom boz,
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u3_atom len,
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u3_atom dat)
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{
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u3_noun res = u3qc_rev(boz, len, dat);
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u3z(boz); u3z(len); u3z(dat);
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return res;
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}
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