Unfortunately, the change from int to Month means that it's harder to read Date objects from an input file, since it doesn't work if a user enters Date::jan. Write a toMonth function that can be used to enter a month as an integer. Throw invalid_argument if it fails. Month m = toMonth(3); // returns Month::mar udts.cpp 1 include 3 finclude "date.h" 4 using namespace std; 6. /** Construct a valid Month. @param mm the month in the range 1-12 @exception throw invalid argument if out of range. @return the correct Month. 8. 9. 10 11 Month toMonth(int mm) 13 { 12 14 15 16 17 } Demo.cpp 1 finclude
Unfortunately, the change from int to Month means that it's harder to read Date objects from an input file, since it doesn't work if a user enters Date::jan. Write a toMonth function that can be used to enter a month as an integer. Throw invalid_argument if it fails. Month m = toMonth(3); // returns Month::mar udts.cpp 1 include 3 finclude "date.h" 4 using namespace std; 6. /** Construct a valid Month. @param mm the month in the range 1-12 @exception throw invalid argument if out of range. @return the correct Month. 8. 9. 10 11 Month toMonth(int mm) 13 { 12 14 15 16 17 } Demo.cpp 1 finclude
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Transcribed Image Text:Unfortunately, the change from int to Month means that it's harder to read Date objects from an
input file, since it doesn't work if a user enters Date::jan. Write a toMonth function that can be
used to enter a month as an integer. Throw invalid_argument if it fails.
| Month m = toMonth(3); // returns Month::mar
udts.cpp
1 #include <string>
2 finclude <stdexcept>
3 finclude "date.h"
using namespace std;
4
6.
/**
Construct a valid Month.
7
@param mm the month in the range 1-12
@exception throw invalid argument if out of range.
@return the correct Month.
8
10
11
*/
Month toMonth(int mm)
13 {
12
14
15
16
17 }
Demo.cpp
1 finclude <iostream
#include <string>
#include "date.h"
2
3
4
using namespace std;
5
int main()
7 {
6
cout « "Enter date as mm/dd/yyyy: ";
int mm, dd, yyyy;
char slash;
cin » mm » slash » dd » slash » yyyy;
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10
11
12
13
try
{
Date d = makeDate(toMonth(mm), dd, yyyy);
cout « "The date is " « d « endl;
}
catch (invalid argument& e)
{
cout « e.what () <« endl;
}
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15
16
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20
21
22 }
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