text: /* Copyright (c) 2011, Patrick O. Perry
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are
   * met:
   *
   *     * Redistributions of source code must retain the above copyright
   *       notice, this list of conditions and the following disclaimer.
   *     * Redistributions in binary form must reproduce the above
   *       copyright notice, this list of conditions and the following disclaimer
   *       in the documentation and/or other materials provided with the
   *       distribution.
   *     * Neither the name of Patrick O. Perry nor the
   *       names of his contributors may be used to endorse or promote products
   *       derived from this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #include "xalloc.h"
  #include <stdlib.h>
  #include <string.h>
  
  void *xcalloc(size_t count, size_t size)
  {
  	void *res = calloc(count, size);
  	if (size && count && !res) {
  		xalloc_die();
  	}
  	return res;
  }
  
  void *xmalloc(size_t size)
  {
  	void *ptr = malloc(size);
  	if (size && !ptr)
  		xalloc_die();
  	return ptr;
  }
  
  void *xrealloc(void *ptr, size_t size)
  {
  	void *res = realloc(ptr, size);
  	if (!res) {
  		xalloc_die();
  	}
  	return res;
  }
  
  void *xmemdup(const void *ptr, size_t size)
  {
  	void *res = xmalloc(size);
  	memcpy(res, ptr, size);
  	return res;
  }
  
  char *xstrdup(const char *s1)
  {
  	char *s = strdup(s1);
  	if (s1 && !s)
  		xalloc_die();
  	return s;
  }
  