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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	int i;
  6. double d;
  7. cin >> d;
  8. if (cin.fail()) // Проверка что нет некорректных знаков, например букв
  9.     cout << "error" << endl;
  10. i = d;
  11. if (i != d)
  12.     cout << "error" << endl;
  13.  
  14.  
  15. }
Success #stdin #stdout 0s 4176KB
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stdin
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3,2
stdout
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Standard output is empty
https://ideone.com/hFuhc1
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
public

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