Reading Notes: C ++ programming principles and practices (ch27: differences between C and C ++) [++]

Chapter 2 C Language

1. C and C ++

2. Compatibility between C and C ++

3. c ++ features not supported by C

 

4. Differences between functions and C ++ in C: function Overloading is not supported.

5. function parameter check

6. Function Definition

 

7. Call C in C ++ and call C ++ in C

 

 

8. function pointer

View code /*

//

// This is example code from Chapter 27.2.4 "pointers to functions"

// "Programming -- Principles and Practice Using C ++" by Bjarne stroustrup

//

*/

/*----------------------------------------------------------------------------*/

Struct shape1 {

Enum kind {circle, rectangle} kind;

/*...*/

};

/*----------------------------------------------------------------------------*/

Void draw (struct shape1 * P)

{

Switch (p-> kind ){

Case circle:

/* Draw as circle */

Break;

Case rectangle:

/* Draw as rectangle */

Break;

}

}

/*----------------------------------------------------------------------------*/

Int F (struct shape1 * pp)

{

Draw (PP );

/*...*/

}

/*----------------------------------------------------------------------------*/

Typedef void (* pfct0) (struct shape2 *);

Typedef void (* pfct1int) (struct shape2 *, INT );

/*----------------------------------------------------------------------------*/

Struct shape2 {

Pfct0 draw;

Pfct1int rotate;

/*...*/

};

/*----------------------------------------------------------------------------*/

Void draw1 (struct shape2 * P)

{

(P-> draw) (p );

}

/*----------------------------------------------------------------------------*/

Void rotate (struct shape2 * P)

{

(P-> rotate) (p, 90 );

}

/*----------------------------------------------------------------------------*/

Int F1 (struct shape * pp)

{

Draw (PP );

/*...*/

}

/*----------------------------------------------------------------------------*/

9. Differences in the C/C ++ structure signature Space

 

10. Differences in keywords between C/C ++

11. Differences in variable definition between C/C ++

12. C style type conversion

13. Void * Conversion

14. Enumeration

15. namespace

16. Dynamic Memory Allocation

 

17. cStyle string

 

18. C-style string and const

19. byte operations

20. instance: strcpy

21. style issues

22. Input and Output

23. File

24. constants and macros

25. Macro

26. Macro of Class Functions

27. Do not use syntax macros

28. Conditional compilation