[ascii.git] / atoi.c

#include "atoi.h"

int atoi (char *str)
{
    int i = 0;
    int s = 1;

    if (*str == '-') {
        s = 0;
        str++;
    }

    while (*str != 0) {
        if ((*str <'0') || (*str > '9')) {
            return 0;
        }
        i = i * 10 + (int)(*(str++) - '0');
    }

    return (s) ? i : -i;
}

/* vim: set ts=4 sw=4 et: */
Commit	Line	Data
1968fc94 LM	1	#include "atoi.h"
	2
	3	int atoi (char *str)
	4	{
	5	int i = 0;
	6	int s = 1;
	7
	8	if (*str == '-') {
	9	s = 0;
e9b24fd1	10	str++;
1968fc94 LM	11	}
	12
	13	while (*str != 0) {
	14	if ((str <'0') \|\| (str > '9')) {
	15	return 0;
	16	}
	17	i = i * 10 + (int)(*(str++) - '0');
	18	}
	19
	20	return (s) ? i : -i;
	21	}
	22
e9b24fd1	23	/* vim: set ts=4 sw=4 et: */