On 10/24/07, John Gateley <[EMAIL PROTECTED]> wrote: > I don't think it is undefined code. The class has no virtual functions, > and the variable argument function doesn't need to know the full size > of the struct, since it is not using it as a String object, it is using > it as a char * pointer (which is what gets passed).
Does not matter if the class has no virtual functions or not. The class is a non POD. > I'm not familiar with "ABI". But perhaps this has something to do > with my other question: is the illegal instruction that gets executed > a "real" illegal instruction, caused by g++ doing something different > that I expected with the String object as an argument? Or is the illegal > instruction just a "place marker" that is generated because I passed > a non-POD as an argument? The latter. Again this is a non-POD. Does not matter if the class has no virtual functions or not, it is still undefined code. -- Pinski
