What is the problem with this code?
- by eSKay
#include<stdio.h>
class A { public: int a;};
class B: public A {
public:
static int b;
B(){
b++;
printf("B:%d\n",b);
}
};
int main() {
A* a1 = new B[100];
A* a2 = new B();
return 0;
}
Error:
In function `main':
undefined reference to `B::b'
undefined reference to `B::b'
undefined reference to `B::b'
undefined reference to `B::b'
