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40 lines
622 B
C
40 lines
622 B
C
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/* j/3/swp.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_swp(u3_atom a,
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u3_atom b)
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{
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//XX write a proper c-style swp, maybe
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return u3kc_rep(u3k(a), u3kb_flop(u3qc_rip(a, b)));
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}
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u3_noun
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u3wc_swp(u3_noun cor)
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{
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u3_noun a, b;
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if ( (c3n == u3r_mean(cor, u3x_sam_2, &a, u3x_sam_3, &b, 0)) ||
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(c3n == u3ud(a)) ||
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(c3n == u3ud(b)) )
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{
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return u3m_bail(c3__exit);
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} else {
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return u3qc_swp(a, b);
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}
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}
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u3_noun
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u3kc_swp(u3_atom a,
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u3_atom b)
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{
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u3_noun res = u3qc_swp(a, b);
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u3z(a); u3z(b);
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return res;
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}
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