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  1. #include <iostream>         /// cin, cout
  2.  
  3. using namespace std;
  4.  
  5.  
  6. void read()
  7. {
  8.     char buf[80] {};
  9.  
  10.     cout << "Please enter at least 5 chars: ";
  11.  
  12.     cin.read(buf, 5);
  13.  
  14.     if (cin)
  15.     {
  16.         cout << "cin.read() successfully read "
  17.              << cin.gcount() << " characters: ";
  18.  
  19.  
  20.         cout << buf << endl;
  21.  
  22.         cout << "next char: " << (char) cin.peek()
  23.              << endl;
  24.     }
  25.     else
  26.         cout << "cin.read() was unsuccessful" << endl;
  27. }
  28.  
  29.  
  30. int main()
  31. {
  32.     for (int i = 0; i < 4; i++)
  33.        read();
  34. }
Success #stdin #stdout 0s 15240KB
comments (?)
stdin
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abcde
abcd
abcdef
stdout
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Please enter at least 5 chars: cin.read() successfully read 5 characters: abcde
next char: 

Please enter at least 5 chars: cin.read() successfully read 5 characters: 
abcd
next char: 

Please enter at least 5 chars: cin.read() successfully read 5 characters: 
abcd
next char: e
Please enter at least 5 chars: cin.read() was unsuccessful
https://ideone.com/P2ffXf
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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