Default calculator implementation. It is used for calculating expressions.

You can find more information in comments below. Overrided methods can be found in corresponding base class or interface.

class CCalculator :public virtual ICalculator
    {
    public:
        int getErrorCount() override;
        ERROR_INFO getError(const int index) override;
        int getProcedureCount() const override;
        IProcedure *getProcedure(const int index) override;
        IProcedure *getProcedure(const String &name) override;
        int getVariableCount() const override;
        CVariable *getVariable(const int index) override;
        CVariable *getVariable(const String &name) override;
        IEntityCalculator *getEntityCalculator() override;
    
        bool setEntityCalculator(IEntityCalculator *value) override;
    
        bool AddProcedure(IProcedure *proc) override;
        bool DeleteProcedure(const int index) override;
        bool DeleteProcedure(IProcedure *proc) override;
        bool DeleteProcedure(const String &name) override;
        bool ClearProcedures() override;
    
        bool AddVariable(CVariable *value) override;
        CVariable *AddVariable(const String &name) override;
        CVariable *AddVariable(const String &name, const String &value) override;
        CVariable *AddVariable(const String &name, const long long value) override;
        CVariable *AddVariable(const String &name, const double value) override;
        void SetVariable(const String &name, const String &value) override;
        void SetVariable(const String &name, const long long value) override;
        void SetVariable(const String &name, const double value) override;
        bool DeleteVariable(const int index) override;
        bool DeleteVariable(CVariable *item) override;
        bool DeleteVariable(const String &name) override;
        bool ClearVariables() override;
    
        void ClearErrors() override;
        CVariable *Calculate(CExpression *expression, CVariable *parent) override;
        void Release() override;
    
        CCalculator();
        virtual ~CCalculator();
    };