2 ** This file is in the public domain, so clarified as of
3 ** 2006-07-17 by Arthur David Olson.
8 * $FreeBSD: src/usr.sbin/zic/ialloc.c,v 1.5 1999/08/28 01:21:18 peter Exp $
9 * $DragonFly: src/usr.sbin/zic/ialloc.c,v 1.5 2008/10/19 20:15:58 swildner Exp $
15 #define nonzero(n) (((n) == 0) ? 1 : (n))
20 return malloc((size_t) nonzero(n));
24 icalloc(int nelem, int elsize)
26 if (nelem == 0 || elsize == 0)
28 return calloc((size_t) nelem, (size_t) elsize);
32 irealloc(void *const pointer, const int size)
36 return realloc((void *) pointer, (size_t) nonzero(size));
40 icatalloc(char *const old, const char *new)
45 newsize = (new == NULL) ? 0 : strlen(new);
48 else if (newsize == 0)
50 else oldsize = strlen(old);
51 if ((result = irealloc(old, oldsize + newsize + 1)) != NULL)
53 strcpy(result + oldsize, new);
58 icpyalloc(const char *string)
60 return icatalloc(NULL, string);
71 icfree(char * const p)