porterskyandQwen 3.8 27B
e09540c2b2
Add a CMakeLists.txt to each exercise directory, included from cmat/CMakeLists.txt, so every exercise and solution becomes a buildable target. GUI exercises link the curses-based DOS_Unix implementations on Unix-like systems; the Windows-specific DOS variants are not compiled. Exercises without a portable path or with missing dependencies (Boost) are reported as not available at configure time. Targets are excluded from the default build and built by name, e.g. `cmake --build build --target Ex11`, so intentionally buggy exercises such as Ex21 do not break the default build. Also fix two portability issues: rename Ex11bug/pole.h to Pole.h for case-sensitive filesystems and drop the extra Light:: qualification in SolutionEx71A/Light.h. Document build commands and layout in AGENTS.md. Co-authored-by: Qwen 3.8 27B <qwen3.8_27b-q3_k_xl@lmstudio.local>
95 lines
2.5 KiB
C++
95 lines
2.5 KiB
C++
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#include <exception>
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#include <string>
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#include <vector>
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#include "Person.h"
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#include "PersonException.h"
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#include <iostream>
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using std::cin;
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using std::cout;
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using std::string;
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using std::exception;
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int main() {
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std::vector<Person *> people;
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Person *personPtr;
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string namePrompt = "Enter name: ";
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string name;
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string agePrompt = "Enter age: ";
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int age;
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string salaryPrompt = "Enter salary: ";
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int salary;
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cout << namePrompt;
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cin >> name;
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while (name != "q") {
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// Set 'personPtr' to nullptr at the beginning
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// of the loop to tell us whether a Person
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// object has been created during this pass
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// through the loop
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personPtr = nullptr;
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try {
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cout << agePrompt;
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cin >> age;
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if (!cin) {
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cin.clear();
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string dummy;
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cin >> dummy;
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throw PersonException("invalid age");
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}
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personPtr = new Person(name, age);
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cout << salaryPrompt;
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cin >> salary;
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if (!cin) {
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cin.clear();
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string dummy;
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cin >> dummy;
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throw PersonException("invalid salary");
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}
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personPtr->setSalary(salary);
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// We only get here if no exception has been
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// raised, that is, both 'age' and 'salary'
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// are valid and non-negative.
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people.push_back(personPtr);
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}
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catch (exception &e) {
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cout << "PersonException thrown: " << e.what() << '\n';
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// If an exception was raised, then the current object
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// is invalid and should be deleted. Recall that:
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// 1. delete on a null pointer is harmless (does nothing)
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// 2. delete on a non-null pointer causes that pointer
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// to be set to an undefined value
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delete personPtr;
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// Since 'personPtr' may now be undefined, set it to null.
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personPtr = nullptr;
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}
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cout << "There are " << Person::GetCount() << " Person(s), " << people.size() << " in vector\n";
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cout << namePrompt;
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cin >> name;
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}
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// delete all the person(s) in the vector
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for (std::vector<Person *>::iterator iter = people.begin(); iter != people.end(); ++iter) {
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delete *iter;
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}
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cout << "There are " << Person::GetCount() << " Person(s) left dangling\n";
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return 0;
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}
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