Function add_FILETIME

src/engine/execnt.c:658–662

static FILETIME add_FILETIME( FILETIME t1, FILETIME t2 )
{
    return add_64( t1.dwHighDateTime, t1.dwLowDateTime, t2.dwHighDateTime,
        t2.dwLowDateTime );
}


static FILETIME negate_FILETIME( FILETIME t )