rtbuf/rtbuf/gtk3/stack.c

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• Hash : adb9e235
  Author : Thomas de Grivel
  Date : 2023-01-14T18:26:30
  

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• gtk3/stack.c

• /* rtbuf
   * Copyright 2018-2023 kmx.io <contact@kmx.io>
   *
   * Permission is hereby granted to use this software excepted
   * on Apple computers 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 <assert.h>
  #include "stack.h"
  
  void stack_init (s_stack *s)
  {
    assert(s);
    s->head = 0;
    s->length = 0;
  }
  
  void stack_destroy (s_stack *s)
  {
    assert(s);
    list_delete_all(s->head);
    s->head = 0;
    s->length = 0;
  }
  
  void stack_push (s_stack *s, void *item)
  {
    assert(s);
    s->head = list_new(item, s->head);
    assert(s->head);
    s->length++;
  }
  
  void * stack_pop (s_stack *s)
  {
    void *item;
    assert(s);
    assert(s->length > 0);
    assert(s->head);
    item = s->head->item;
    s->head = s->head->next;
    s->length--;
    return item;
  }
  

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