Bjarne Stroustrup “Programming Principles and Practice Using C++”
Chapter 7 Exercise 11.1
Using std_lib_facilities.h by Bjarne Stroustrup.
[code language=”cpp”]
// Philipp Siedler
// Bjarne Stroustrup’s PP
// Chapter 7 Exercise 11.1
#include "std_lib_facilities.h"
vector<string> dayName;
vector<int> dayVal(7, 0);
void init_dayName() {
dayName = { "Monday", "monday", "Mon",
"Tuesday", "tuesday", "Tue",
"Wednesday", "wednesday", "Wed",
"Thursday", "thursday", "Thu",
"Friday", "friday", "Fri",
"Saturday", "saturday", "Sat",
"Sunday", "sunday", "Sun" };
}
void calculate() {
string day;
int value;
string falsevalue;
bool check = true;
cout << "Enter pairs of week-days and values seperated by blank space or exit "
<< "and 0 to end entry: \n";
while (check) {
if (cin >> day >> value) {
for (int i = 0; i < dayName.size(); i++) {
if (day == dayName[i]) {
dayVal[i / 3] += value;
}
}
if (day == "exit" && value == 0) {
check = false;
}
}
else {
cin.clear();
cin >> falsevalue;
error("Entered value illegal: ", falsevalue);
}
}
for (int i = 0; i < dayVal.size(); i++) {
cout << dayName[i * 3] << ": " << dayVal[i] << "\n";
}
}
int main()
try
{
init_dayName();
calculate();
keep_window_open(".");
}
catch (runtime_error e) {
cout << e.what() << "\n";
keep_window_open(".");
}
catch (…) {
cout << "Extiting" << "\n";
keep_window_open(".");
}
[/code]
Output: Enter pairs of week-days and values seperated by blank space or exitand 0 to end entry: Monday 10 Tuesday 30 Friday 60 exit 0 Monday: 10 Tuesday: 30 Wednesday: 0 Thursday: 0 Friday: 60 Saturday: 0 Sunday: 0 Please enter . to exit
