date class [version 941]

Bjarne Stroustrup “Programming Principles and Practice Using C++”
Chapter 9 Drill 1
Using std_lib_facilities.h by Bjarne Stroustrup.

[code language=”cpp”]
// Philipp Siedler
// Bjarne Stroustrup’s PP
// Chapter 9 Drill 1

#include "std_lib_facilities.h"

struct Date {
int y;
int m;
int d;
};

void init_day(Date& dd, int y, int m, int d) {
dd.y = y;
dd.m = m;
dd.d = d;
}

void add_day(Date& dd, int n) {
dd.d += n;
}

int main()
try
{
Date today;
Date tomorrow;

init_day(today, 2005, 12, 24);
tomorrow = today;
add_day(tomorrow, 1);

cout << "Year: " << today.y << " Month: " <<today.m << " Day: " << today.d << "\n";
cout << "Year: " << tomorrow.y << " Month: " << tomorrow.m << " Day: " << tomorrow.d << "\n";

keep_window_open();
}

catch (runtime_error e) {
cout << e.what() << "\n";
keep_window_open();
}
catch (…) {
cout << "Exiting\n";
keep_window_open();
}
[/code]

Output:
Year: 2005 Month: 12 Day: 24
Year: 2005 Month: 12 Day: 25
Please enter a character to exit

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