Why won't this compile and how can it be implemented so that it does?
- by George Edison
Here is some C++ code I'm playing around with:
#include <iostream>
#include <vector>
#define IN ,
#define FOREACH(x,y) for(unsigned int i=0;i<y.size();i++) { x=y[i];
#define ENDFOREACH }
using namespace std;
int main()
{
vector<int> ints;
ints.push_back(3);
ints.push_back(4);
ints.push_back(5);
ints.push_back(6);
FOREACH(int item IN ints)
cout << item;
ENDFOREACH
return 0;
}
However, I get an error:
macro "FOREACH" requires 2 arguments, but only 1 given
The code compiles if I change the IN to a comma. How can I get the IN to take the place of a comma?
