Update ICU to 54.1 step 1

source/tools/tzcode/ialloc.c

 /*
 ** This file is in the public domain, so clarified as of
 ** 2006-07-17 by Arthur David Olson.
 */
 
-#ifndef lint
-#ifndef NOID
-static char     elsieid[] = "@(#)ialloc.c       8.30";
-#endif /* !defined NOID */
-#endif /* !defined lint */
-
 /*LINTLIBRARY*/
 
 #include "private.h"
 
-#define nonzero(n)      (((n) == 0) ? 1 : (n))
-
 char *
-imalloc(n)
-const int       n;
-{
-        return malloc((size_t) nonzero(n));
-}
-
-char *
-icalloc(nelem, elsize)
-int     nelem;
-int     elsize;
-{
-        if (nelem == 0 || elsize == 0)
-                nelem = elsize = 1;
-        return calloc((size_t) nelem, (size_t) elsize);
-}
-
-void *
-irealloc(pointer, size)
-void * const    pointer;
-const int       size;
-{
-        if (pointer == NULL)
-                return imalloc(size);
-        return realloc((void *) pointer, (size_t) nonzero(size));
-}
-
-char *
-icatalloc(old, new)
-char * const            old;
-const char * const      new;
+icatalloc(char *const old, const char *const new)
 {
         register char * result;
         register int    oldsize, newsize;
 
         newsize = (new == NULL) ? 0 : strlen(new);
         if (old == NULL)
                 oldsize = 0;
         else if (newsize == 0)
                 return old;
         else    oldsize = strlen(old);
-        if ((result = irealloc(old, oldsize + newsize + 1)) != NULL)
+        if ((result = realloc(old, oldsize + newsize + 1)) != NULL)
                 if (new != NULL)
                         (void) strcpy(result + oldsize, new);
         return result;
 }
 
 char *
-icpyalloc(string)
-const char * const      string;
+icpyalloc(const char *const string)
 {
-        return icatalloc((char *) NULL, string);
+        return icatalloc(NULL, string);
 }
-
-void
-ifree(p)
-char * const    p;
-{
-        if (p != NULL)
-                (void) free(p);
-}
-
-void
-icfree(p)
-char * const    p;
-{
-        if (p != NULL)
-                (void) free(p);
-}