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  1. #include <iostream>
  2. #include <chrono>
  3. #include <thread>
  4. typedef std::chrono::high_resolution_clock Clock;
  5.  
  6. std::string toString() {
  7.   return "String_" + std::to_string(rand() % 100);
  8. }
  9.  
  10. bool Verbose;
  11. void log(const std::string& S) {
  12.   if (Verbose)
  13.     return;
  14. }
  15.  
  16. int main()
  17. {
  18.     Verbose = false;
  19.     std::chrono::milliseconds three_milliseconds{3};
  20.  
  21.     void *P;
  22.     auto t1 = Clock::now();
  23.     for (int I = 0; I < 1000000; ++I)
  24.       log(toString());
  25.     auto t2 = Clock::now();
  26.  
  27.     std::cout << "Delta t2-t1: " 
  28.               << std::chrono::duration_cast<std::chrono::milliseconds>(t2 - t1).count()
  29.               << " milliseconds" << std::endl;
  30.     std::cout << P;
  31. }
Success #stdin #stdout 0.08s 15240KB
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Standard input is empty
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Delta t2-t1: 80 milliseconds
0
https://ideone.com/p07NYi
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

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