Stream8, C++ (gcc)

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//g++  7.4.0

///////////////////////////////////////////////////////////////////////
//Stream8
//this code is created by Rezaul Hoque on July 26,2022;
//contact:jewelmrh@yahoo.com;Dhaka,Bangladesh;https://rezaulhoque.wordpress.com,https://hoquestake.blogspot.com
//note: codes shared by Rezaul Hoque on rextester are not for sale; they are created and shared to facilitate the algorithm learning process; many like Hoque use this platform to practice programming ;Rezaul hopes his contribution helps others to fine tune their learning;
//////////////////////////////////////////////////////////////////////////////

#include <fstream>
#include <iostream>
#include <iomanip>
#include <string>
#include <strstream>
//stream manipulator
std::ostream& l(std::ostream& os)
{
  return (os<<"\n");
}

void fill(char c)
{
std::cout.width(40);
std::cout.fill(c);
std::cout<<l;
}

int main()
{
fill('&');
std::cout.setf(std::ios::internal);
std::cout.fill(' ');
std::cout.width(25);
std::ostringstream s;
std::streamsize n=s.rdbuf()->sputn("Another Stream Example",22);
std::cout<<s.str()<<l;
std::stringstream date("July 00");
date.get();
date.get();
date.get();
date.get();
date.get();
date.get();
date.rdbuf()->sputbackc('2');
date.get();
date.get();
date.rdbuf()->sputbackc('6');

std::cout<<date.str();
std::stringstream y(", 2022");
std::cout<<y.str()<<l;
fill('&');
return 0;
}

Show compiler warnings [ + ] Compiler args [ + ] Show input
Compilation time: 0.72 sec, absolute running time: 0.17 sec, cpu time: 0.01 sec, memory peak: 5 Mb, absolute service time: 0,94 sec