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  1. #include <iostream>
  2. #include <vector>
  3. #include <chrono>
  4.  
  5. int main()
  6. {
  7.     using namespace std::chrono;
  8.  
  9.     std::vector<float> v;
  10.     v.reserve(172490752);
  11.  
  12.     auto tp0 = steady_clock::now();
  13.     for (auto i=v.capacity(); i--;)
  14.         v.push_back(1.0f+i);
  15.     auto tp1 = steady_clock::now();
  16.     std::cout << v.size() << " elements\n";
  17.     std::cout << duration_cast<milliseconds>(tp1-tp0).count() << "ms\n";
  18. }
  19.  
Success #stdin #stdout 0.39s 16064KB
comments (?)
stdin 
Standard input is empty
stdout 
172490752 elements
385ms
https://ideone.com/2XWATN
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
secret

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