Predefined Identifier and Macros Example
1 2 3 4 5 6 7 8 9 10 11 12 | #include <stdio.h>void main() { // The compiler supports this predefined identifier specified by ISO C99 and C++11. printf("__FUNCTION__\t: %s\n", __FUNCTION__); // The compiler supports these predefined macros specified by the ISO C99 and C++14 standards. printf("__DATE__\t: %s\n", __DATE__); printf("__TIME__\t: %s\n", __TIME__); printf("__FILE__\t: %s\n", __FILE__); printf("__LINE__\t: %d\n", __LINE__);} |
1 2 3 4 5 | __FUNCTION__ : main__DATE__ : Aug 30 2017__TIME__ : 21:01:11__FILE__ : main.cpp__LINE__ : 11 |