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  1. #include <iostream>
  2.  
  3. int main()
  4. {
  5.     double tmp = 1.;
  6.     double eps;
  7.     while(tmp != 0) {
  8.         eps = tmp;
  9.         tmp /= 2.;
  10.     }
  11.     if(eps == 0) {
  12.         std::cout << "(1)eps is zero!\n";
  13.     }
  14.     std::cout << "eps before: " << eps;
  15.     if(eps == 0) {
  16.         std::cout << "(2)eps is zero!\n";
  17.     }
  18.  
  19.     while(eps < 1.) {
  20.         tmp = eps;
  21.         eps *= 2.;
  22.         if(tmp == eps) {
  23.             printf("wtf?\n");
  24.         }
  25.     }
  26.  
  27.     std::cout << "eps after: " << eps;
  28. }
  29.  
Runtime error #stdin #stdout 0.02s 2680KB
comments (?)
stdin
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Standard input is empty
stdout
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eps before: 0(2)eps is zero!
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https://ideone.com/0bEeHz
language:
C++ (gcc 8.3)
created:
12 years ago
visibility:
public

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