Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/torture/pr81977.C @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
---|---|
date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
line wrap: on
line source
/* { dg-do run } */ /* { dg-require-effective-target int32plus } */ #include <cstdint> typedef struct { uint16_t x ; uint16_t y ; uint64_t z ; } __attribute__((packed, aligned(1))) TestMsgType; struct Payload { uint16_t header_info[2]; TestMsgType _pref; void Pack(uint8_t *buffer) { __builtin_memcpy(buffer, &_pref, sizeof(_pref)); } void UnPack(uint8_t *buffer) { __builtin_memcpy(&_pref, buffer, sizeof(_pref)); } }; struct Msg { Payload _payload; void Pack(uint8_t *buffer) { _payload.Pack(buffer); } void UnPack(uint8_t *buffer) { _payload.UnPack(buffer); } }; int main() { uint8_t * buffer = new uint8_t [30]; Msg msg; Msg msg1; msg._payload._pref.x = 0xabcd; msg._payload._pref.y = 0xa; msg._payload._pref.z = 0x0001020304051617; msg.Pack(&buffer[0]); msg1.UnPack(&buffer[0]); if (msg1._payload._pref.x != 0xabcd) __builtin_abort (); delete [] buffer; }