/* (C) Copyright 1993 by John G. Myers
 * All Rights Reserved.
 *
 * Permission to use, copy, modify, distribute, and sell this software
 * and its documentation for any purpose is hereby granted without
 * fee, provided that the above copyright notice appear in all copies
 * and that both that copyright notice and this permission notice
 * appear in supporting documentation, and that the name of John G.
 * Myers not be used in advertising or publicity pertaining to
 * distribution of the software without specific, written prior
 * permission.  John G. Myers makes no representations about the
 * suitability of this software for any purpose.  It is provided "as
 * is" without express or implied warranty.
 *
 * JOHN G. MYERS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS, IN NO EVENT SHALL JOHN G. MYERS BE LIABLE FOR ANY SPECIAL,
 * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
 * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
 * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
#include <stdio.h>
extern char *malloc(), *realloc();

char *xmalloc (size)
int size;
{
    char *ret;

    if (ret = malloc((unsigned) size))
      return ret;

    fprintf(stderr, "Virtual memory exhausted\n");
    exit(1);
}


char *xrealloc (ptr, size)
char *ptr;
int size;
{
    char *ret;

    /* xrealloc (NULL, size) behaves like xmalloc (size), as in ANSI C */
    if (ret = !ptr ? malloc ((unsigned) size) : realloc (ptr, (unsigned) size))
      return ret;

    fprintf(stderr, "Virtual memory exhausted\n");
    exit(1);
}

char *strsave(str)
char *str;
{
    char *p = xmalloc(strlen(str)+1);
    strcpy(p, str);
    return p;
}