The C standard says that bit shifts of negative integers is
undefined. This casts to unsigned values to assure a known
result.
Change-Id: I217ff9e4407b0627838fc84fd81413098cac0931
Signed-off-by: DongHun Kwak <dh0128.kwak@samsung.com>
{
struct inflate_state FAR *state;
- if (strm == Z_NULL || strm->state == Z_NULL) return -1L << 16;
+ if (strm == Z_NULL || strm->state == Z_NULL)
+ return (long)(((unsigned long)0 - 1) << 16);
state = (struct inflate_state FAR *)strm->state;
- return ((long)(state->back) << 16) +
+ return (long)(((unsigned long)((long)state->back)) << 16) +
(state->mode == COPY ? state->length :
(state->mode == MATCH ? state->was - state->length : 0));
}