/*
 * Copyright (c) 1983 Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Edward Wang at The University of California, Berkeley.
 *
 * %sccs.include.redist.c%
 *
 *	@(#)string.h	3.9 (Berkeley) 06/06/90
 */

#define STR_DEBUG

char *str_cpy();
char *str_ncpy();
char *str_cat();
char *str_itoa();

#define str_cmp(a, b)	strcmp(a, b)

#ifdef STR_DEBUG
struct string {
	struct string *s_forw;
	struct string *s_back;
	char s_data[1];
};

struct string str_head;

#define str_offset ((unsigned)str_head.s_data - (unsigned)&str_head)
#define str_stos(s) ((struct string *)((unsigned)(s) - str_offset))

char *str_alloc();
int str_free();
#else
#define str_free(s)	free(s)
#define str_alloc(s)	malloc(s)
#endif