2013-09-29 00:21:18 +04:00
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/* j/4/in_tap.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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2014-09-04 07:10:43 +04:00
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2013-09-29 00:21:18 +04:00
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/* functions
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*/
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2014-09-06 00:13:24 +04:00
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static u3_noun
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2014-08-20 08:30:55 +04:00
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_tap_in(
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2014-09-06 00:13:24 +04:00
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u3_noun a,
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u3_noun b)
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2013-09-29 00:21:18 +04:00
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{
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2014-09-06 00:13:24 +04:00
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if ( u3_nul == a ) {
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2013-09-29 00:21:18 +04:00
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return b;
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} else {
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2014-09-06 00:13:24 +04:00
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u3_noun l_a, n_a, r_a;
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2013-09-29 00:21:18 +04:00
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2014-09-06 00:13:24 +04:00
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if ( (u3_no == u3_cr_trel(a, &n_a, &l_a, &r_a)) ) {
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u3z(b);
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return u3_cm_bail(c3__exit);
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2013-09-29 00:21:18 +04:00
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} else {
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return _tap_in
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2014-08-20 08:30:55 +04:00
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(r_a,
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2014-09-06 00:13:24 +04:00
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u3nc(u3k(n_a),
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2014-08-20 08:30:55 +04:00
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_tap_in(l_a, b)));
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2013-09-29 00:21:18 +04:00
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}
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2014-04-22 05:22:11 +04:00
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}
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2013-09-29 00:21:18 +04:00
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}
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2014-09-06 00:13:24 +04:00
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u3_noun
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u3_cqdi_tap(
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u3_noun a,
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u3_noun b)
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2013-09-29 00:21:18 +04:00
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{
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2014-09-06 00:13:24 +04:00
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return _tap_in(a, u3k(b));
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2013-09-29 00:21:18 +04:00
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}
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2014-09-06 00:13:24 +04:00
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u3_noun
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u3_cwdi_tap(
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u3_noun cor)
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2013-09-29 00:21:18 +04:00
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{
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2014-09-06 00:13:24 +04:00
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u3_noun a, b;
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2013-09-29 00:21:18 +04:00
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2014-09-06 00:13:24 +04:00
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if ( u3_no == u3_cr_mean(cor, u3_cv_sam, &b, u3_cv_con_sam, &a, 0) ) {
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return u3_cm_bail(c3__exit);
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2013-09-29 00:21:18 +04:00
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} else {
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2014-09-06 00:13:24 +04:00
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return u3_cqdi_tap(a, b);
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2013-09-29 00:21:18 +04:00
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}
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}
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2014-09-06 00:13:24 +04:00
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u3_noun
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u3_ckdi_tap(u3_noun a, u3_noun b)
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2014-09-05 23:55:16 +04:00
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{
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2014-09-06 00:13:24 +04:00
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u3_weak c = u3_cqdi_tap(a, b);
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2014-09-05 23:55:16 +04:00
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2014-09-06 00:13:24 +04:00
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u3z(a); u3z(b);
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if ( u3_none == c ) {
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return u3_cm_bail(c3__exit);
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2014-09-05 23:55:16 +04:00
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}
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else return c;
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}
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