C++/C Get CPP file line number with file name

Compiler built-in macros:

We first introduce several compiler built-in macro definitions, these macro definitions can not only help us to complete the cross-platform source code writing, flexible use can also skillfully help us to output very useful debugging information.

There are several standard scheduled macros (also commonly used) in the ANSI C standard:

__LINE__: Inserts the current source code line number in the source code;

__FILE__: Inserts the current source filename in the source file;

__DATE__: Insert the current compilation date in the source file

__TIME__: Inserts the current compile time in the source file;

__STDC__: The identifier is assigned a value of 1 when the program strictly complies with the ANSI C standard;

__cplusplus: This identifier is defined when you write a C + + program.

The following example:

[CPP]View Plaincopy

2. #include <stdio.h>
6. int main ()
8. {
10. Char file[16];
12. Char func[16];
14. int line;
16. sprintf (file,__file__); //File name
18. sprintf (func,__function__); //Function name
20. printf ("file=%s\n", file);
22. printf ("func=%s\n", func);
24. printf ("%05d\n", __line__); Line number
26. return 0;
28. }

C++/C Get CPP file line number with file name