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# Inherit overload hide

Inheritance hides base class methods with the same name even if they have different arguments.

Use `using` to prevent that.

- http://stackoverflow.com/questions/1896830/why-should-i-use-the-using-keyword-to-access-my-base-class-method

- http://stackoverflow.com/questions/4837399/c-rationale-behind-hiding-rule

#include "common.hpp"

int main() {

class Base {

public:

int overload(){ return 1; }

int no_overload(){ return 2; }

int no_base(){ return 3; }

};

class Derived : public Base {

public:

using Base::overload;

int overload(int i) {

return i + 1;

}

int no_base(int i){ return i + 2; }

};

Derived c;

// ERROR: no matching function.

//assert(c.no_base() == 3);

assert(c.no_base(1) == 3);

// Visible because of the using.

assert(c.overload() == 1);

assert(c.overload(1) == 2);

assert(c.no_overload() == 2);

}