[unix-history] / usr / src / usr.bin / window / string.h

/*
 *	@(#)string.h	3.3 84/04/05
 */
#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
Commit	Line	Data
921f5a1c	1	/*
0180c2d9	2	* @(#)string.h 3.3 84/04/05
921f5a1c	3	*/
90ede912	4	#define STR_DEBUG
921f5a1c EW	5
921f5a1c EW	6	char *str_cpy();
0180c2d9	7	char *str_ncpy();
921f5a1c EW	8	char *str_cat();
	9	char *str_itoa();
	10
	11	#define str_cmp(a, b) strcmp(a, b)
90ede912 EW	12
	13	#ifdef STR_DEBUG
	14	struct string {
	15	struct string *s_forw;
	16	struct string *s_back;
	17	char s_data[1];
	18	};
	19
	20	struct string str_head;
	21
	22	#define str_offset ((unsigned)str_head.s_data - (unsigned)&str_head)
	23	#define str_stos(s) ((struct string *)((unsigned)(s) - str_offset))
	24
	25	char *str_alloc();
	26	int str_free();
	27	#else
	28	#define str_free(s) free(s)
	29	#define str_alloc(s) malloc(s)
	30	#endif