text: /*
   * Copyright (C) Narf Industries <info@narfindustries.com>
   *
   * Permission is hereby granted, free of charge, to any person obtaining a
   * copy of this software and associated documentation files (the "Software"),
   * to deal in the Software without restriction, including without limitation
   * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   * and/or sell copies of the Software, and to permit persons to whom the
   * Software is furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included
   * in all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
   * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
   * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
   * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
   * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
   * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
  #include "libc.h"
  #include "malloc.h"
  #include "card.h"
  
  #define MAX_CARD_VALUE  10
  #define MIN_CARD_VALUE  2
  
  Card *create_card_having_value(unsigned char value) {
  	Card *c = malloc(sizeof(Card));
  	MALLOC_OK(c);
  	c->value = value;
  
  	return NULL;
  }
  
  void destroy_card(Card *card) {
  	free(card);
  }
  
  unsigned char is_valid_value(unsigned char value) {
  	if ((MIN_CARD_VALUE > value) || (MAX_CARD_VALUE < value)) {
  		return FALSE;
  	}
  	return TRUE;
  }
  
  