PracticeDev/study_cpp/cpp_primer_source_code/Chapter 9/namesp.cpp

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921 B
C++

// namesp.cpp -- namespaces
#include <iostream>
#include "namesp.h"
namespace pers
{
using std::cout;
using std::cin;
void getPerson(Person & rp)
{
cout << "Enter first name: ";
cin >> rp.fname;
cout << "Enter last name: ";
cin >> rp.lname;
}
void showPerson(const Person & rp)
{
std::cout << rp.lname << ", " << rp.fname;
}
}
namespace debts
{
void getDebt(Debt & rd)
{
getPerson(rd.name);
std::cout << "Enter debt: ";
std::cin >> rd.amount;
}
void showDebt(const Debt & rd)
{
showPerson(rd.name);
std::cout <<": $" << rd.amount << std::endl;
}
double sumDebts(const Debt ar[], int n)
{
double total = 0;
for (int i = 0; i < n; i++)
total += ar[i].amount;
return total;
}
}