2 ** This file is in the public domain, so clarified as of
3 ** 2006-07-17 by Arthur David Olson.
8 static char elsieid[] = "@(#)ialloc.c 8.30";
9 #endif /* !defined NOID */
10 #endif /* !defined lint */
16 #define nonzero(n) (((n) == 0) ? 1 : (n))
22 return malloc((size_t) nonzero(n));
26 icalloc(nelem, elsize)
30 if (nelem == 0 || elsize == 0)
32 return calloc((size_t) nelem, (size_t) elsize);
36 irealloc(pointer, size)
42 return realloc((void *) pointer, (size_t) nonzero(size));
48 const char * const new;
50 register char * result;
51 register int oldsize, newsize;
53 newsize = (new == NULL) ? 0 : strlen(new);
56 else if (newsize == 0)
58 else oldsize = strlen(old);
59 if ((result = irealloc(old, oldsize + newsize + 1)) != NULL)
61 (void) strcpy(result + oldsize, new);
67 const char * const string;
69 return icatalloc((char *) NULL, string);