2589   size_t     magic;  member
2616   size_t magic;  member
2627 #define ensure_initialization() (void)(mparams.magic != 0 || init_mparams())
3028 #define ok_magic(M)      ((M)->magic == mparams.magic)
3070   (((mchunkptr)((char*)(p) + (s)))->prev_foot = ((size_t)(M) ^ mparams.magic))
3074     (chunksize(p))))->prev_foot ^ mparams.magic))
3111   if (mparams.magic == 0) {  in init_mparams()
3112     size_t magic;  in init_mparams()  local
3175         magic = *((size_t *) buf);  in init_mparams()
3181       magic = (size_t)(GetTickCount() ^ (size_t)0x55555555U);  in init_mparams()
3183       magic = (size_t)&magic ^ (size_t)0x55555555U;  in init_mparams()
3185       magic = (size_t)(time(0) ^ (size_t)0x55555555U);  in init_mparams()
3187       magic |= (size_t)8U;    /* ensure nonzero */  in init_mparams()
3188       magic &= ~(size_t)7U;   /* improve chances of fault for bad values */  in init_mparams()
3190       (*(volatile size_t *)(&(mparams.magic))) = magic;  in init_mparams()
4204       m->magic = mparams.magic;  in sys_alloc()
5433   m->magic = mparams.magic;  in init_user_mstate()