// Two classes with the same method signatures and bodies that compute
// equivalent values. Class-dup detector should flag.

class CalcA {
public:
    int twice(int x) { return x + x; }
    int square(int x) { return x * x; }
};

class CalcB {
public:
    int twice(int y) { return y * 2; }
    int square(int y) { return y * y; }
};