ListTel, C++ (gcc)

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//g++  7.4.0

//////////////////////////////////////////////////////////////////////////////
//ListTel: example of tuple as class attribute
//this code is created by Rezaul Hoque on August 07,2022;
//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 <iostream>
#include <string>
#include <tuple>
#include <list>

using namespace std;
//stream manipulator
std::ostream& l(std::ostream& os)
{
  return (os<<"\n");
}
namespace Pat {
void fill(char c)
{
std::cout.width(40);
std::cout.fill(c);
std::cout<<l;
}
void left(int n,char c){
std::cout.setf(std::ios::left);
std::cout.fill(c);
std::cout.width(n);
}
void right(int n,char c){
std::cout.setf(std::ios::right);
std::cout.fill(c);
std::cout.width(n);
}
}
namespace Tel{
class Tel{
std::string name;
bool update;
list<tuple<std::string,int>> l;

public:

Tel(){}
Tel(std::string n,bool y,
list<tuple<std::string,int>> m){l=m;name=n;update=y;}
Tel(Tel& c){l=c.l;name=c.name;update=c.update;}
~Tel(){}
std::string getName(){return name;}
bool getUpd(){return update;}
  
list<tuple<std::string,int>> getL(){ return l;}
};
}

int main()
{

tuple<std::string,int> t1;
t1=make_tuple ("XYZ",111);

tuple<std::string,int> t2;
t2=make_tuple ("CTZ",121);

Tel::Tel ad("X",true,{t1,t2});

Pat::fill('@');
Pat::left(18,' ');
std::cout<<"Name"<<"ContName"<<"     Number"<<l;

Pat::left(20,' ');
std::cout<<ad.getName();
for(auto thisTup:ad.getL()){
tuple<std::string, int> tuple=thisTup;
Pat::left(18,' ');
std::cout<<get<0>(thisTup)<<" ";
Pat::right(18,' ');
  std::cout<<get<1>(thisTup)<<l;
}
Pat::fill('@');

return 0;
}

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Compilation time: 0.72 sec, absolute running time: 0.16 sec, cpu time: 0.01 sec, memory peak: 5 Mb, absolute service time: 1,03 sec