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  1. #include <algorithm>
  2. #include <iostream>
  3. #include <functional>
  4. #include <random>
  5. #include <time.h>
  6.  
  7. int main() {
  8. 	std::mt19937 mersenne_engine(time(NULL));
  9. 	std::uniform_int_distribution<unsigned int> distribution(1, 10);
  10. 	auto generator = std::bind(distribution, mersenne_engine);
  11.  
  12. 	for(unsigned int i=0; i<10; ++i) {
  13. 		std::vector<unsigned int> weights(10);
  14.  
  15. 		// This line always generates the same vector content.
  16. 		std::generate(weights.begin(), weights.end(), generator);
  17. 		// This line properly randomizes the content each iteration.
  18. 		//for(auto &weight : weights) weight = generator();
  19.  
  20. 		for(auto &weight : weights) {
  21. 			std::cout << weight << " ";
  22. 		}
  23. 		std::cout << std::endl;
  24. 	}
  25. }
  26.  
Success #stdin #stdout 0s 4452KB
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stdin
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Standard input is empty
stdout
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2 5 2 3 4 5 4 7 8 7 
2 5 2 3 4 5 4 7 8 7 
2 5 2 3 4 5 4 7 8 7 
2 5 2 3 4 5 4 7 8 7 
2 5 2 3 4 5 4 7 8 7 
2 5 2 3 4 5 4 7 8 7 
2 5 2 3 4 5 4 7 8 7 
2 5 2 3 4 5 4 7 8 7 
2 5 2 3 4 5 4 7 8 7 
2 5 2 3 4 5 4 7 8 7
https://ideone.com/t9lpPz
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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