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Consider this Date type. Write a factory function to create a date. Throw invalid_argument indicating which part of the date is invalid. You may use the predefined isLeapYear function in your code. struct Date { int day, month, year; };

Consider this Date type. Write a factory function to create a date. Throw invalid_argument indicating which part of the date is invalid. You may use the predefined isLeapYear function in your code. struct Date { int day, month, year; };

Computer Networking: A Top-Down Approach (7th Edition)
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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### Creating a Valid Date in C++ In this lesson, we'll explore how to create a valid `Date` type using C++. The task involves writing a factory function to create a date and handle invalid input by throwing an `invalid_argument` exception, indicating which part of the date is invalid. You'll utilize a predefined `isLeapYear` function for this purpose. #### Structure Definition ```cpp struct Date { int day, month, year; }; ``` #### File: `udts.cpp` The following is an implementation description and code snippet from `udts.cpp`: ```cpp #include <string> #include <stdexcept> #include "date.h" using namespace std; /** * Construct a valid Date object. * @param m the month in the range 1-12 * @param d the day in the range 1-31 (check for leap year) * @param y the year in the range 1582-2099 * @exception throw invalid_argument if out of range. * @return the constructed Date object. */ Date makeDate(int m, int d, int y) { ... } ``` - **Includes**: The code begins by including necessary headers: `<string>`, `<stdexcept>`, and `"date.h"`. - **Namespace**: The standard namespace is used (`using namespace std;`). - **Function Documentation**: The `makeDate` function constructs a `Date` object if the input values for month, day, and year are within valid ranges. The function parameters are: - `m` (month): should be within the range 1-12. - `d` (day): should be within the range 1-31, and consideration for leap years is required. - `y` (year): should be between 1582 and 2099. - **Exception Handling**: The function throws an `invalid_argument` exception if any input value is out of the allowed range, ensuring robust error handling. - **Function Return**: On successful validation, a `Date` object is returned. In summary, this code snippet demonstrates how to construct a validated `Date` object in C++, ensuring that the input adheres to the Gregorian calendar rules and handling any errors through exceptions.
Transcribed Image Text:### Creating a Valid Date in C++ In this lesson, we'll explore how to create a valid `Date` type using C++. The task involves writing a factory function to create a date and handle invalid input by throwing an `invalid_argument` exception, indicating which part of the date is invalid. You'll utilize a predefined `isLeapYear` function for this purpose. #### Structure Definition ```cpp struct Date { int day, month, year; }; ``` #### File: `udts.cpp` The following is an implementation description and code snippet from `udts.cpp`: ```cpp #include <string> #include <stdexcept> #include "date.h" using namespace std; /** * Construct a valid Date object. * @param m the month in the range 1-12 * @param d the day in the range 1-31 (check for leap year) * @param y the year in the range 1582-2099 * @exception throw invalid_argument if out of range. * @return the constructed Date object. */ Date makeDate(int m, int d, int y) { ... } ``` - **Includes**: The code begins by including necessary headers: `<string>`, `<stdexcept>`, and `"date.h"`. - **Namespace**: The standard namespace is used (`using namespace std;`). - **Function Documentation**: The `makeDate` function constructs a `Date` object if the input values for month, day, and year are within valid ranges. The function parameters are: - `m` (month): should be within the range 1-12. - `d` (day): should be within the range 1-31, and consideration for leap years is required. - `y` (year): should be between 1582 and 2099. - **Exception Handling**: The function throws an `invalid_argument` exception if any input value is out of the allowed range, ensuring robust error handling. - **Function Return**: On successful validation, a `Date` object is returned. In summary, this code snippet demonstrates how to construct a validated `Date` object in C++, ensuring that the input adheres to the Gregorian calendar rules and handling any errors through exceptions.
### Date Validation Test Cases This section reviews the date validation functionality through a series of test cases. Each test case presents an input date and compares the actual output with the expected outcome. #### Test Case 1 - **Input:** - `3/15/1625` - **Actual Result:** - The system outputs: `Enter date as mm/dd/yyyy: The date is 00/15/-1655662928` - **Expected Result:** - It should display: `Enter date as mm/dd/yyyy: The date is 03/15/1625` - **Outcome:** - **Fail** #### Test Case 2 - **Input:** - `2/29/1900` - **Actual Result:** - The system outputs: `Enter date as mm/dd/yyyy: The date is 00/29/-1611356496` - **Expected Result:** - It should display: `Enter date as mm/dd/yyyy: day (29) out of range` - **Outcome:** - **Fail** #### Test Case 3 - **Input:** - `2/29/2000` - **Actual Result:** - The system outputs: `Enter date as mm/dd/yyyy: The date is 00/29/-1579305296` - **Expected Result:** - It should display: `Enter date as mm/dd/yyyy: The date is 02/29/2000` - **Outcome:** - **Fail** ### Explanation of Diagram/Graph There are no diagrams or graphs in this data set. The representation is solely based on text comparisons between expected and actual date processing results.
Transcribed Image Text:### Date Validation Test Cases This section reviews the date validation functionality through a series of test cases. Each test case presents an input date and compares the actual output with the expected outcome. #### Test Case 1 - **Input:** - `3/15/1625` - **Actual Result:** - The system outputs: `Enter date as mm/dd/yyyy: The date is 00/15/-1655662928` - **Expected Result:** - It should display: `Enter date as mm/dd/yyyy: The date is 03/15/1625` - **Outcome:** - **Fail** #### Test Case 2 - **Input:** - `2/29/1900` - **Actual Result:** - The system outputs: `Enter date as mm/dd/yyyy: The date is 00/29/-1611356496` - **Expected Result:** - It should display: `Enter date as mm/dd/yyyy: day (29) out of range` - **Outcome:** - **Fail** #### Test Case 3 - **Input:** - `2/29/2000` - **Actual Result:** - The system outputs: `Enter date as mm/dd/yyyy: The date is 00/29/-1579305296` - **Expected Result:** - It should display: `Enter date as mm/dd/yyyy: The date is 02/29/2000` - **Outcome:** - **Fail** ### Explanation of Diagram/Graph There are no diagrams or graphs in this data set. The representation is solely based on text comparisons between expected and actual date processing results.
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