Small details to be paid attention to in C ++ (constantly updating ......)

1. null is not defined in the standard library of C ++, so null is used.

2. The window file name is case-insensitive, so the letters in the header file are case-insensitive when writing the program.

3. the binary tree method can be used to solve the problem that the encoding of any character is not the prefix of another character. (For example, Heman encoding)

4. Declaration and definition of variables. As well as the effective range of variables and the address allocated by the system, it is worth noting in the programming process. (I have answered in my "variable storage question)

5. The break should be added at the end of the case to be noted in the switch statement; otherwise, the program will continue to execute the following case statement.

6. When a class is directly used for an operator, it is generally necessary to overload the operator, but "=" in C ++ has a default overload, that is, the class members are assigned values in turn.