Miscellany

static unsigned char db[] = { 0xDE, 0xAD, 0xBE, 0xEF };static unsigned char buff[SOME_RANDOM_LENGTH];int main(){    int n = sizeof buff / sizeof db;    unsigned char *ptr = buff;    for ( ; n ; n--, ptr+=4 ) {        memcpy( ptr, db, 4 );    }    switch ( sizeof buff % sizeof db ) {    case 3:        ptr[2] = db[2];    case 2:        ptr[1] = db[1];    case 1:        ptr[0] = db[0];        break;    }    return 0;}