/*-------------------------------------

     predef.c -- 预定义宏和预定义标识符

 -------------------------------------*/

 #include <stdio.h>

 void why_me(void);

 int main()

 {

     printf("The file is %s.\n", __FILE__);

     printf("The data is %s.\n", __DATE__);

     printf("The time is %s.\n", __TIME__);

     //printf("The version is %ld.\n", __STDC__);

     printf("This is line %d.\n", __LINE__);

     printf("This function is %s\n", __FUNCTION__);

     why_me();

     return ;

 }

 void why_me()

 {

     printf("This function is %s\n", __FUNCTION__);

     printf("This is line %d.\n", __LINE__);

 }