Ascii allowed in c++

#include <iostream>
int main()
{
  std::cout << "Printable ASCII [32..126]:\n";
  for (char i = ' '; i <= '~'; ++i) {
    std::cout << i << ((i % 16 == 15) ? '\n' : ' ');
  }
}

Source: en.cppreference.com

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