c++教学课件-2-operator overloading.pptxVIP

C++ operators and its overloading;Lecture 1: C++ Operators I;Overview;Why operators?;The First Example;The First Example;The First Example;However, this is not convenient! Things would be easier if we define an operator “!=” : ;The First Example;The First Example;The First Example;Comments on operators;How shall we use operators in C++?;How shall we use operators in C++?;How shall we use operators in C++?;Defining operators in C++;Defining operators in C++;Defining operators in C++;Defining operators in C++;Building more sophisticated array class;Building more sophisticated array class;Building more sophisticated array class;Building more sophisticated array class;Building more sophisticated array class;Building more sophisticated array class;Building more sophisticated array class;More example: a string class;More example: a string class;More example: a string class;More example: a string class;More example: a string class;More example: a string class;More example: a string class;More example: a string class;More example: a string class;More example: a string class;X;More example: a string class;More example: a string class;More example: a string class;More example: a string class;More example: a string class;More example: a string class;More example: a string class;More example: a string class;Lecture 2: C++ Operators II;Overview;Two dimensional array;Two dimensional array;Linear memory implementation is preferred Easier for data transfer More efficient However, less easier to use (need to compute index) Two dimensional array class To encapsulate the computation Use operators to simplify the use;Two dimensional array;Two dimensional array;Two dimensional array;Two dimensional array;Two dimensional array;Two dimensional array;Two dimensional array;Two dimensional array;Overloading arithmetic operators;Overloading arithmetic operators;Overloading arithmeti