35 lines
746 B
C++
35 lines
746 B
C++
#ifndef CALCULATOR_CHALLENGE_OPERAND_HPP
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#define CALCULATOR_CHALLENGE_OPERAND_HPP
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#include <functional>
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#include <string>
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#include <variant>
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template<typename T>
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using BinaryOperatorType = std::function<T(T, T)>;
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using Operator = BinaryOperatorType<double>;
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class IntegerOperand
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{
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public:
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explicit IntegerOperand(double value) noexcept : _value{value} {}
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auto get() const noexcept -> double { return _value; };
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private:
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double _value{0};
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};
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class VariableOperand
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{
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public:
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explicit VariableOperand(std::string name) noexcept : _name{std::move(name)} {}
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auto get() const noexcept -> std::string { return _name; };
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private:
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std::string _name;
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};
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using Operand = std::variant<IntegerOperand, VariableOperand>;
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#endif
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