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  1. #include <set>
  2. #include <iostream>
  3.  
  4. namespace test {
  5. 	struct test {
  6. 		int A;
  7. 		int B;
  8. 	};
  9.  
  10. 	bool operator< (test const& lhs, test const& rhs) {
  11. 		return lhs.A < rhs.A;
  12. 	}
  13.  
  14. 	struct test_B { double B; };
  15.  
  16. 	bool operator< (test const& lhs, test_B const& rhs) {
  17. 		return lhs.B < rhs.B;
  18. 	}
  19.  
  20. 	bool operator< (test_B const& lhs, test const& rhs) {
  21. 		return lhs.B < rhs.B;
  22. 	}
  23. }
  24.  
  25. int main() {
  26.  
  27. 	std::set<test::test, std::less<void>> example {
  28. 	 {1, 2}, {2, 3}, {3, 4}, {4, 5}, {5, 6}
  29. 	};
  30.  
  31. 	std::cout << example.lower_bound<test::test_B>({3.5})->B;
  32.  
  33. 	return 0;
  34. }
Success #stdin #stdout 0s 3468KB
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https://ideone.com/K9JbpB
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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