在define中連接字串與數字

若定義可以設定的好，其實超好用的~

#include <stdio.h>

#define LINE_FILE(x,y) "Line " #y " of file" x
#define _LINE_FILE_(x,y) LINE_FILE(x , y)
#define __LINE_FILE__ _LINE_FILE_( __FILE__ , __LINE__ )

#define MyMacro(a,b,c) a##b##c

int main (
  )
{
  const char *pwsz = __LINE_FILE__;
  const char *MyMacro(A,B,c) = "good";
  printf("%s\n",pwsz);
  printf("%s\n",MyMacro(A,B,c));
  return 0;
}

參考資料：
EFI v.s #define
#define連接字串和數字 『轉錄』