Question

I need to have a string that uses a macro value which is an integer. But it’s outside of any functions, so I do not want to create a variable. I’m using it in a #pragma comment.

so something like this:

#define num 7
#pragma comment(lib, "string" + num)

which would combine the string and num making it (#pragma comment(lib, “string7”)

Answer 1

What you want to do is called stringification:

#define stringify_1(x...)     #x
#define stringify(x...)       stringify_1(x)

#define NUM 7

char *p = stringify(NUM);

This is inspired by __stringify macro in include/linux/stringify.h in Linux kernel helpers.