Concatenate int to string using C Preprocessor

Question

I\'m trying to figure out how I can concatenate a #define\'d int to a #define\'d string using the C Preprocessor. My compiler is

Answer 1

Classical C preprocessor question....

#define STR_HELPER(x) #x
#define STR(x) STR_HELPER(x)

#define MAJOR_VER 2
#define MINOR_VER 6
#define MY_FILE "/home/user/.myapp" STR(MAJOR_VER) STR(MINOR_VER)

The extra level of indirection will allow the preprocessor to expand the macros before they are converted to strings.