[unix-history] / usr / src / lib / libc / stdlib / atoi.c

/* @(#)atoi.c	4.1 (Berkeley) %G% */
atoi(ap)
char *ap;
{
	register int  n, c;
	register char *p;
	int f;

	p = ap;
	n = 0;
	f = 0;
loop:
	while(*p == ' ' || *p == '	')
		p++;
	if(*p == '-') {
		f++;
		p++;
		goto loop;
	}
	while(*p >= '0' && *p <= '9')
		n = n*10 + *p++ - '0';
	if(f)
		n = -n;
	return(n);
}
Commit	Line	Data
47eef4bc BJ	1	/* @(#)atoi.c 4.1 (Berkeley) %G% */
	2	atoi(ap)
	3	char *ap;
	4	{
	5	register int n, c;
	6	register char *p;
	7	int f;
	8
	9	p = ap;
	10	n = 0;
	11	f = 0;
	12	loop:
	13	while(p == ' ' \|\| p == ' ')
	14	p++;
	15	if(*p == '-') {
	16	f++;
	17	p++;
	18	goto loop;
	19	}
	20	while(p >= '0' && p <= '9')
	21	n = n10 + p++ - '0';
	22	if(f)
	23	n = -n;
	24	return(n);
	25	}