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freebsd/usr.sbin/zic/ialloc.c
Garrett Wollman 8211a3a80c The latest and greatest timezone code from Arthur David Olson, part 1.
This import comprises the `zic' and `zdump' programs.

Obtained from: Arthur David Olson, ftp://elsie.nci.nih.gov/pub/tzcode94g
1994-09-13 03:29:24 +00:00

104 lines
1.9 KiB
C

#ifndef lint
#ifndef NOID
static char elsieid[] = "@(#)ialloc.c 8.21";
#endif /* !defined NOID */
#endif /* !defined lint */
/*LINTLIBRARY*/
#include "private.h"
#ifdef MAL
#define NULLMAL(x) ((x) == NULL || (x) == MAL)
#endif /* defined MAL */
#ifndef MAL
#define NULLMAL(x) ((x) == NULL)
#endif /* !defined MAL */
#define nonzero(n) (((n) == 0) ? 1 : (n))
char * icalloc P((int nelem, int elsize));
char * icatalloc P((char * old, const char * new));
char * icpyalloc P((const char * string));
char * imalloc P((int n));
char * irealloc P((char * pointer, int size));
void ifree P((char * pointer));
char *
imalloc(n)
const int n;
{
#ifdef MAL
register char * result;
result = malloc((alloc_size_t) nonzero(n));
return NULLMAL(result) ? NULL : result;
#endif /* defined MAL */
#ifndef MAL
return malloc((alloc_size_t) nonzero(n));
#endif /* !defined MAL */
}
char *
icalloc(nelem, elsize)
int nelem;
int elsize;
{
if (nelem == 0 || elsize == 0)
nelem = elsize = 1;
return calloc((alloc_size_t) nelem, (alloc_size_t) elsize);
}
char *
irealloc(pointer, size)
char * const pointer;
const int size;
{
if (NULLMAL(pointer))
return imalloc(size);
return realloc((genericptr_t) pointer, (alloc_size_t) nonzero(size));
}
char *
icatalloc(old, new)
char * const old;
const char * const new;
{
register char * result;
register int oldsize, newsize;
newsize = NULLMAL(new) ? 0 : strlen(new);
if (NULLMAL(old))
oldsize = 0;
else if (newsize == 0)
return old;
else oldsize = strlen(old);
if ((result = irealloc(old, oldsize + newsize + 1)) != NULL)
if (!NULLMAL(new))
(void) strcpy(result + oldsize, new);
return result;
}
char *
icpyalloc(string)
const char * const string;
{
return icatalloc((char *) NULL, string);
}
void
ifree(p)
char * const p;
{
if (!NULLMAL(p))
(void) free(p);
}
void
icfree(p)
char * const p;
{
if (!NULLMAL(p))
(void) free(p);
}