calculator_impl.cpp

#include "calculator_impl.hpp"
#include <string>


namespace calculator{
    std::shared_ptr<Calculator> Calculator::create() {
        return std::make_shared<CalculatorImpl>();
    }

    CalculatorImpl::CalculatorImpl() {

    }

    int32_t CalculatorImpl::summation(int32_t number1, int32_t number2) {
        int32_t result = number1 + number2;
        return result;
    }

    int32_t CalculatorImpl::subtraction(int32_t number1, int32_t number2) {
        int32_t result = number1 - number2;
        return result;
    }
}

calculator_impl.hpp

#pragma once

#include "calculator.hpp"

namespace calculator {

    class CalculatorImpl : public calculator::Calculator {

    public:
        CalculatorImpl();

        int32_t summation(int32_t number1, int32_t number2);

        int32_t subtraction(int32_t number1, int32_t number2);
    };
}