日期:2014-05-16 浏览次数:20631 次
这几个宏是编译器内置的,不是在哪个头文件中包含的
直接上最简单的例子就好了,没必要多说。
源码:
#include <stdio.h> int main() { printf("The file is %s.\n",__FILE__); printf( "The date is %s.\n", __DATE__ ); printf( "The time is %s.\n", __TIME__ ); printf( "This is line %d.\n", __LINE__ ); printf( "This function is %s.\n", __FUNCTION__ ); return 0; }
The file is macro.c. The date is Aug 24 2012. The time is 23:13:26. This is line 8. This function is main.