variable parameters

[suzukiz]

void vMerge(vector<int> *dest, vector<int> v2, ...)
{
	va_list param;
	va_start(param,v2);

        // dest <- v2
	dest->insert(dest->end(),v2.begin(),v2.end());

	vector<int> arg;
	while(param != NULL)  // how do I stop it when it's at last parameter
	{
		arg = va_arg(param,vector<int>);
		dest->insert(dest->end(),arg.begin(),arg.end());
	}

	va_end(param);
}

I have a function that copies multiple vectors into one vector dest, my problem right now is to stop the while loop from continuing after the last parameter. Any help is appreciated.

[kbw]

You can't know how many args were pushed onto the stack. You have to communicate it somehow.

A standard alternative is to overload on the number of parameters.

[Duthomhas]

Also, don't use variadic argument lists with non-POD types.