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71 lines
1.9 KiB
C
71 lines
1.9 KiB
C
/* j/6/swab.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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/* internals
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*/
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/* functions
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*/
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u2_noun // produce
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j2_mcx(Pt6, ut, snub)(u2_noun van, // retain
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u2_noun sut, // retain
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u2_noun har) // retain
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{
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if ( u2_no == u2du(har) ) {
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return u2_nul;
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} else {
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u2_noun i_har = u2h(har);
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u2_noun t_har = u2t(har);
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u2_noun pi_har = u2h(i_har);
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u2_noun qi_har = u2t(i_har);
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u2_noun peh = u2_cqb_flop(pi_har);
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u2_noun ret = u2nc(u2nc(peh, u2k(qi_har)),
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j2_mcx(Pt6, ut, snub)
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(van, sut, t_har));
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return ret;
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}
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}
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/* boilerplate
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*/
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u2_ho_jet
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j2_mcj(Pt6, ut, snub)[];
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u2_noun // transfer
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j2_mc(Pt6, ut, snub)(
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u2_noun cor) // retain
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{
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u2_noun van, sut, har;
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if ( (u2_no == u2_cr_mean(cor, u2_cv_sam, &har,
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u2_cv_con, &van,
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0)) ||
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(u2_none == (sut = u2_cr_at(u2_cv_sam, van))) )
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{
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return u2_cm_bail(c3__fail);
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} else {
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return j2_mcx(Pt6, ut, snub)(van, sut, har);
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}
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}
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u2_noun // transfer
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u2_cqfu_snub(u2_noun van, // retain
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u2_noun sut, // retain
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u2_noun har) // retain
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{
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return j2_mcx(Pt6, ut, snub)(van, sut, har);
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}
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/* structures
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*/
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u2_ho_jet
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j2_mcj(Pt6, ut, snub)[] = {
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{ ".2", c3__hevy, j2_mc(Pt6, ut, snub), Tier6_c, u2_none, u2_none },
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{ }
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};
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