kc3-lang/kc3/libc3/tag_addi.c

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• Hash : a736cc17
  Author : Thomas de Grivel
  Date : 2024-03-05T20:23:53
  

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• libc3/tag_addi.c

• /* c3
   * Copyright 2022-2024 kmx.io <contact@kmx.io>
   *
   * Permission is hereby granted to use this software granted the above
   * copyright notice and this permission paragraph are included in all
   * copies and substantial portions of this software.
   *
   * THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
   * PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
   * AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
   * THIS SOFTWARE.
   */
  #include "alloc.h"
  #include "assert.h"
  #include "complex.h"
  #include "tag.h"
  
  s_tag * tag_addi (const s_tag *a, const s_tag *b, s_tag *dest)
  {
    s_complex *c;
    s_complex ca = {0};
    s_complex cb = {0};
    assert(a);
    assert(b);
    assert(dest);
    c = alloc(sizeof(s_complex));
    if (! c)
      return NULL;
    if (! complex_init_cast(&ca, a)) {
      free(c);
      return NULL;
    }
    if (! complex_init_cast(&cb, b)) {
      complex_clean(&ca);
      free(c);
      return NULL;
    }
    if (! tag_sub(&ca.x, &cb.y, &c->x)) {
      complex_clean(&cb);
      complex_clean(&ca);
      free(c);
      return NULL;
    }
    if (! tag_add(&ca.y, &cb.x, &c->y)) {
      tag_clean(&c->x);
      complex_clean(&cb);
      complex_clean(&ca);
      free(c);
      return NULL;
    }
    return tag_init_complex(dest, c);
  }
  

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