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45 lines
758 B
C
45 lines
758 B
C
/* j/1/add.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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/* functions
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*/
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u2_noun
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u2_cqa_add(u2_atom a,
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u2_atom b)
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{
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if ( u2_so(u2_co_is_cat(a)) && u2_so(u2_co_is_cat(b)) ) {
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c3_w c = a + b;
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return u2_ci_words(1, &c);
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}
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else {
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mpz_t a_mp, b_mp;
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u2_cr_mp(a_mp, a);
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u2_cr_mp(b_mp, b);
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mpz_add(a_mp, a_mp, b_mp);
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mpz_clear(b_mp);
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return u2_ci_mp(a_mp);
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}
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}
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u2_noun
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u2_cwa_add(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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(u2_no == u2ud(b)) )
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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_cqa_add(a, b);
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}
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}
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