Function git_parse_signed

parse.c:18–52

}

int git_parse_signed(const char *value, intmax_t *ret, intmax_t max)
{
	if (value && *value) {
		char *end;
		intmax_t val;
		intmax_t factor;

		if (max < 0)
			BUG("max must be a positive integer");

		errno = 0;
		val = strtoimax(value, &end, 0);
		if (errno == ERANGE)
			return 0;
		if (end == value) {
			errno = EINVAL;
			return 0;
		}
		factor = get_unit_factor(end);
		if (!factor) {
			errno = EINVAL;
			return 0;
		}
		if ((val < 0 && (-max - 1) / factor > val) ||
		    (val > 0 && max / factor < val)) {
			errno = ERANGE;
			return 0;
		}
		val *= factor;
		*ret = val;
		return 1;
	}
	errno = EINVAL;
	return 0;
}

int git_parse_unsigned(const char *value, uintmax_t *ret, uintmax_t max)
{