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  1. #include <iostream>
  2. #include <sstream>
  3. #include <iomanip>
  4. #include <string>
  5.  
  6. using namespace std;
  7.  
  8. bool readRangedInt(int min, int max, int &dst)
  9. {
  10.     string s;
  11.     int n;
  12.  
  13.     cin >> s;
  14.     istringstream iss(s);
  15.  
  16.     iss >> n;
  17.  
  18.     if(iss.eof() && n >= min && n <= max)
  19.     {
  20.         dst = n;
  21.         return true;
  22.     }
  23.  
  24.     return false;
  25. }
  26.  
  27. int main(void)
  28. {
  29.     int n;
  30.     bool result = readRangedInt(1, 9, n);
  31.     char *result_text[] = {"Wrong.", "Correct."};
  32.     cout << result_text[result] << endl;
  33.  
  34.     return 0;
  35. }
Success #stdin #stdout 0.01s 2864KB
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9
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Correct.
https://ideone.com/9OZYEo
language:
C++ (gcc 8.3)
created:
13 years ago
visibility:
public

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