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  1. #include <iostream>
  2. #include <cstdlib>
  3. #include <vector>
  4. #include <algorithm>
  5. #include <iterator>
  6. using namespace std;
  7.  
  8. template<typename T>
  9. struct range {
  10. 	using value_type = T;
  11. 	//TODO: assert min <= max
  12. 	value_type min, max;
  13. };
  14.  
  15. struct point {
  16. 	using value_type = int;
  17. 	value_type x, y;
  18.  
  19. 	static point random(range<value_type> x_r, range<value_type> y_r) {
  20. 		//TODO: use <random> instead of filthy rand
  21. 		return {
  22. 			(rand()%x_r.max)+x_r.min,
  23. 			(rand()%y_r.max)+y_r.min
  24. 		};
  25. 	}
  26.  
  27. 	friend ostream &operator<<(ostream &os, point const &p) {
  28. 		return os << "{x: " << p.x << ", y: " << p.y << "}";
  29. 	}
  30. };
  31. int main() {
  32. 	range<point::value_type>
  33. 		x_range { 0, 100 },
  34. 		y_range { 0, 100 };
  35.  
  36. 	vector<point> points;
  37. 	generate_n(back_inserter(points), 10, [&] {
  38. 		return point::random(x_range, y_range);
  39. 	});
  40.  
  41. 	for_each(begin(points), end(points), [](auto &&p) {
  42. 		cout << p << endl;
  43. 	});
  44. 	return 0;
  45. }
Success #stdin #stdout 0s 3468KB
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stdin
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Standard input is empty
stdout
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{x: 83, y: 86}
{x: 77, y: 15}
{x: 93, y: 35}
{x: 86, y: 92}
{x: 49, y: 21}
{x: 62, y: 27}
{x: 90, y: 59}
{x: 63, y: 26}
{x: 40, y: 26}
{x: 72, y: 36}
https://ideone.com/HvcbxC
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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