# Extra Clang Tools 7 documentation

## clang-tidy - bugprone-copy-constructor-init

# bugprone-copy-constructor-init

Finds copy constructors where the constructor doesn’t call the copy constructor of the base class.

    class Copyable {
    public:
      Copyable() = default;
      Copyable(const Copyable &) = default;
    };
    class X2 : public Copyable {
      X2(const X2 &other) {} // Copyable(other) is missing
    };

Also finds copy constructors where the constructor of the base class don’t have parameter.

    class X4 : public Copyable {
      X4(const X4 &other) : Copyable() {} // other is missing
    };

The check also suggests a fix-its in some cases.