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  1. #include <stdio.h>
  2. #include <time.h>
  3. #define timefnrt(W, X, Z){\
  4. 	time_t V = time(NULL);\
  5. 	W = X;\
  6. 	time_t Y = time(NULL);\
  7. 	Z = difftime(Y, V);\
  8. };
  9. class foo {
  10. public:
  11. 	int somefunc(int& x, int y) {
  12. 		for (int i = 0; i < x; i++)
  13. 			printf("Iteration %d\n", i);
  14. 		printf("Address of x within func is %p\n", &x);
  15. 		printf("Address of y within func is %p\n", &y);
  16. 		printf("Address of object within func is %p\n", this);
  17. 		return y;
  18. 	}
  19. };
  20. int main() {
  21. 	foo f;
  22. 	double ftime;
  23. 	int retval;
  24. 	int x = 2;
  25. 	int y = 30;
  26. 	printf("Address of x in main is %p\n", &x);
  27. 	printf("Address of y in main is %p\n", &y);
  28. 	printf("Address of object in main is %p\n", &f);
  29. 	printf("---\n");
  30. 	timefnrt(retval, f.somefunc(x, y), ftime);
  31. 	printf("Return value was %d, Time taken was %f seconds\n", retval, ftime);
  32.  
  33. }
Success #stdin #stdout 0s 4252KB
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stdin
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Standard input is empty
stdout
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Address of x in main is 0x7fff2702079c
Address of y in main is 0x7fff270207a0
Address of object in main is 0x7fff27020798
---
Iteration 0
Iteration 1
Address of x within func is 0x7fff2702079c
Address of y within func is 0x7fff270207a4
Address of object within func is 0x7fff27020798
Return value was 30, Time taken was 0.000000 seconds
https://ideone.com/3stZOS
language:
C++14 (clang 8.0)
created:
4 years ago
visibility:
public

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