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  1. #include <iostream>
  2. #include <string>
  3. #include <cstdarg>
  4.  
  5. void print(std::string s, ...)
  6. {
  7.     int len = s.length();
  8.     int pSum = 0;
  9.     for (int i = 0; i < len; i++)
  10.     {
  11.         if (s[i] == '%' && i < len - 1)
  12.         {
  13.             char c = s[i + 1];
  14.             if (c == 'd' || c == 'i' || c == 's') pSum++;
  15.         }
  16.     }
  17.     va_list ap; // Initialization of the VA list
  18.     va_start(ap, s); // Start iterating through the VA list
  19.     int r;
  20.     for (int i = 0; i < len; i++)
  21.     {
  22.         if (s[i] == '%' && i < len - 1) // Check for % in the string
  23.         {
  24.             char c = s[i + 1];
  25.             if (c == 'i')
  26.             {
  27.                 r = va_arg(ap, int);
  28.                 std::cout << r;
  29.                 i++;
  30.             }
  31.         }
  32.         else std::cout << s[i];
  33.     }
  34.     va_end(ap); // Stop iterating over the VA list
  35. }
  36. int main() {
  37.     print("The number %i is the only even prime number.", 2);
  38.  
  39.     return 0;
  40. }
  41.  
Success #stdin #stdout 0s 3428KB
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Standard input is empty
stdout
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The number 2 is the only even prime number.
https://ideone.com/Fe1OFt
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
secret

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