更新时间:2023-02-03 09:21:20
尝试一下:
#include <stdio.h>
#define FOO_ONE 12
#define FOO_TWO 34
#define BAR_ONE 56
#define BAR_TWO 78
#define STRINGIFY(arg) #arg
#define CONCAT(arg1, arg2) STRINGIFY(arg1) STRINGIFY(arg2)
#define MAC(arg) CONCAT(arg##_ONE, arg##_TWO)
int main(){
printf("FOO: " MAC(FOO) "\n");
printf("BAR: " MAC(BAR) "\n");
return 0;
}
我的输出:
FOO: 1234
BAR: 5678