C:/Users/r1821655/CLionProjects/untitled/sequence.cpp:48:5: error: return type specification for constructor invalid template class sequence { public: // TYPEDEFS and MEMBER SP2020 typedef Item value_type; typedef std::size_t size_type; static const size_type CAPACITY = 10; // CONSTRUCTOR sequence(); // MODIFICATION MEMBER FUNCTIONS void start(); void end(); void advance(); void move_back(); void add(const value_type& entry); void remove_current(); // CONSTANT MEMBER FUNCTIONS size_type size() const; bool is_item() const; value_type current() const; private: value_type data[CAPACITY]; size_type used; size_type current_index; }; }    48 |     void sequence::sequence() : used(0), current_index(0) { }       |     ^~~~ line 47 template line 48 void sequence::sequence() : used(0), current_index(0) { }

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Class

Object Oriented Programming System (OOPs) is a programming model built on the perception of “objects” that contains data and methods. The major purpose of Object Oriented Programming is to increase the maintainability and flexibility of programs. Object Oriented Programming gets together data and its behavior (methods) in a single location (object) which makes it easier to understand.