1 #include <stdio.h> get_checked(void)2int __attribute__((weak)) get_checked(void) { 3 return -1; 4 } 5 6 7 #define CHECK_VALUE (100) 8 #define TEST_SUCCESS (0) 9 #define TEST_FAILTURE (-1) 10 main(void)11int main(void) { 12 if (get_checked() == CHECK_VALUE) { 13 fprintf(stdout,"good\n"); 14 return TEST_SUCCESS; 15 } 16 fprintf(stdout,"bad\n"); 17 return TEST_FAILTURE; 18 } 19 20