Initial checkin.
diff --git a/examples/list_people.cc b/examples/list_people.cc
new file mode 100644
index 0000000..bd9a583
--- /dev/null
+++ b/examples/list_people.cc
@@ -0,0 +1,65 @@
+// See README.txt for information and build instructions.
+
+#include <iostream>
+#include <fstream>
+#include <string>
+#include "addressbook.pb.h"
+using namespace std;
+
+// Iterates though all people in the AddressBook and prints info about them.
+void ListPeople(const tutorial::AddressBook& address_book) {
+ for (int i = 0; i < address_book.person_size(); i++) {
+ const tutorial::Person& person = address_book.person(i);
+
+ cout << "Person ID: " << person.id() << endl;
+ cout << " Name: " << person.name() << endl;
+ if (person.has_email()) {
+ cout << " E-mail address: " << person.email() << endl;
+ }
+
+ for (int j = 0; j < person.phone_size(); j++) {
+ const tutorial::Person::PhoneNumber& phone_number = person.phone(j);
+
+ switch (phone_number.type()) {
+ case tutorial::Person::MOBILE:
+ cout << " Mobile phone #: ";
+ break;
+ case tutorial::Person::HOME:
+ cout << " Home phone #: ";
+ break;
+ case tutorial::Person::WORK:
+ cout << " Work phone #: ";
+ break;
+ }
+ cout << phone_number.number() << endl;
+ }
+ }
+}
+
+// Main function: Reads the entire address book from a file and prints all
+// the information inside.
+int main(int argc, char* argv[]) {
+ // Verify that the version of the library that we linked against is
+ // compatible with the version of the headers we compiled against.
+ GOOGLE_PROTOBUF_VERIFY_VERSION;
+
+ if (argc != 2) {
+ cerr << "Usage: " << argv[0] << " ADDRESS_BOOK_FILE" << endl;
+ return -1;
+ }
+
+ tutorial::AddressBook address_book;
+
+ {
+ // Read the existing address book.
+ fstream input(argv[1], ios::in | ios::binary);
+ if (!address_book.ParseFromIstream(&input)) {
+ cerr << "Failed to parse address book." << endl;
+ return -1;
+ }
+ }
+
+ ListPeople(address_book);
+
+ return 0;
+}
