通过

How do I define a macro to get a string representing the __LINE__?

  • 项目

This comes from an internal Distribution List, I thought this might be useful:

#define STRINGIFY(a) #a

#define LINESTR STRINGIFY(__LINE__)

printf("this is line %s\n", LINESTR);

Outputs “this is line __LINE__”

#define STRINGIFY(a) #a

#define STRINGIFY2(a) STRINGIFY(a)

#define LINESTR STRINGIFY2(__LINE__)

printf("this is line %s\n", LINESTR);

Outputs “this is line 364”