Class Foo

test/bvar_reducer_unittest.cpp:263–270

}

struct Foo {
    int x;
    Foo() : x(0) {}
    explicit Foo(int x2) : x(x2) {}
    void operator+=(const Foo& rhs) {
        x += rhs.x;
    }
};

std::ostream& operator<<(std::ostream& os, const Foo& f) {
    return os << "Foo{" << f.x << "}";