#

/*LINTLIBRARY*/

#include "stdio.h"

#if !defined lint && !defined NOID
static char	elsieid[] = "%W%";
#endif /* !defined lint && !defined NOID */

#if !defined alloc_t
#define alloc_t	unsigned
#endif /* !defined alloc_t */

#if defined MAL
#define NULLMAL(x)	((x) == NULL || (x) == MAL)
#else /* !defined MAL */
#define NULLMAL(x)	((x) == NULL)
#endif /* !defined MAL */

#if defined __STDC__ || defined __TURBOC__
#include "alloc.h"
#include "string.h"
#else /* !defined __STDC__ || defined __TURBOC__ */
extern char *	calloc();
extern char *	malloc();
extern char *	realloc();
extern char *	strcpy();
#endif /* !defined __STDC__ || defined __TURBOC__ */

char *
imalloc(n)
{
#if defined MAL
	register char *	result;

	if (n == 0)
		n = 1;
	result = malloc((alloc_t) n);
	return (result == MAL) ? NULL : result;
#else /* !defined MAL */
	if (n == 0)
		n = 1;
#if defined __TURBOC__ && __TURBOC__ == 1
	/*
	** Beat a TURBOC 1.0 bug.
	*/
	if ((n & 1) != 0)
		++n;
#endif /* defined __TURBOC__  && __TURBOC__ == 1 */
	return malloc((alloc_t) n);
#endif /* !defined MAL */
}

char *
icalloc(nelem, elsize)
{
	if (nelem == 0 || elsize == 0)
		nelem = elsize = 1;
#if defined __TURBOC__ && __TURBOC__ == 1
	if ((nelem & 1) != 0 && (elsize & 1) != 0)
		++nelem;
#endif /* defined __TURBOC__ && __TURBOC__ == 1 */
	return calloc((alloc_t) nelem, (alloc_t) elsize);
}

char *
irealloc(pointer, size)
char *	pointer;
{
	if (NULLMAL(pointer))
		return imalloc(size);
	if (size == 0)
		size = 1;
#if defined __TURBOC__ && __TURBOC__ == 1
	if ((size & 1) != 0)
		++size;
#endif /* defined __TURBOC__ && __TURBOC__ == 1 */
	return realloc(pointer, (alloc_t) size);
}

char *
icatalloc(old, new)
char *	old;
char *	new;
{
	register char *	result;
	register	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)
char *	string;
{
	return icatalloc((char *) NULL, string);
}

ifree(p)
char *	p;
{
	if (!NULLMAL(p))
		free(p);
}

icfree(p)
char *	p;
{
	if (!NULLMAL(p))
		free(p);
}