C Tutorial Preprocessor 15 codes

1 #if

2 #line

3 __FILE__

4 __LINE__

5 Error directive

6 Ifdef

7 Ifelif

8 Ifelse

9 Ifndef

10 MACRO

11 MACRO AND FUNCTION

12 Preprocessing

13 Undef

14 Use #define to define constant

15 Use preprocessor to define integer and string