On 07/06/17 14:45, K wrote:
> And I found that that a version which I beleve mustn't have aliasing
> problems still generates same warnings.
It still has aliasing problems: you can't make them magically go away
by using an intermediate uint8_t*.
You're doing this:
struct udp_pseudo {
uint32_t src;
uint32_t dst;
uint8_t z;
uint8_t proto;
uint16_t len;
} tmp;
...
auto ret = calc_16bit_checksum_part((uint8_t*)&tmp, sizeof(tmp), 0);
static uint32_t calc_16bit_checksum_part(uint8_t* buf, int len,
uint32_t ret) {
struct ui16{
uint16_t d;
};
ui16 *ptr = (ui16*)buf;
There's no need for any of this messing about with pointer casts, as has
been explained.
--
Andrew Haley
Java Platform Lead Engineer
Red Hat UK Ltd. <https://www.redhat.com>
EAC8 43EB D3EF DB98 CC77 2FAD A5CD 6035 332F A671
