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  1. #include <iostream>
  2. #include <map>
  3. using namespace std;
  4.  
  5. struct _tagTest{
  6. 	int x{0};
  7. 	int y{0};
  8.  
  9. 	struct comp{
  10. 		bool operator()(const _tagTest& _lhs, const _tagTest& _rhs) const
  11. 		{
  12. 			if (_lhs.x == _rhs.x && _lhs.y == _rhs.y)
  13. 				return false;
  14. 			else if (_lhs.x < _rhs.x || _lhs.y < _rhs.y)
  15. 				return true;
  16.  
  17. 			return false;
  18. 		}
  19. 	};
  20. };
  21.  
  22. int main() {
  23. 	std::map<_tagTest, int, _tagTest::comp> mapTest;
  24. 	++mapTest[{1, 2}];
  25. 	++mapTest[{1, 2}];
  26. 	++mapTest[{1, 3}];
  27. 	++mapTest[{1, 3}];
  28. 	++mapTest[{1, 3}];
  29. 	++mapTest[{2, 3}];
  30. 	++mapTest[{2, 1}];
  31. 	std::map<_tagTest, int, _tagTest::comp>::iterator itMap = mapTest.begin();
  32. 	for (; itMap != mapTest.end(); ++itMap)
  33. 	{
  34. 		std::cout << itMap->first.x << " " << itMap->first.y << ":" << itMap->second << std::endl;
  35. 	}
  36. 	return 0;
  37. }
Success #stdin #stdout 0s 15240KB
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stdin
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Standard input is empty
stdout
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1 2:2
1 3:3
2 1:1
2 3:1
https://ideone.com/f77JNs
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
public

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