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| #include <iostream>
#include <locale>
#include <cstdlib>
using namespace std;
class Stack;
class Data{
private:
friend Stack;
Data *next;
char *surname;
char *name;
char *patronymic;
int group;
int ball;
public:
void ShowData() const;
Data(char*, char*, char*, int, int);
Data();
void SetData(char*, char*, char*, int, int);
~Data();
};
void Data::SetData(char *m_surname, char *m_name, char *m_patronymic, int group, int ball){
this->group = group;
this->ball = ball;
int len;
char *p = m_surname;
delete[] this->surname;
delete[] this->name;
delete[] this->patronymic;
if (p){
len = strlen(p);
this->surname = new char[len + 1];
int i = 0;
while (*p){ *(this->surname + i) = *p; ++p; ++i; }
*(this->surname + len) = 0;
}
else{
this->surname = new char[7];
strcpy(this->surname, "Unknow");
}
p = m_name;
if (p){
len = strlen(p);
this->name = new char[len + 1];
int i = 0;
while (*p){ *(this->name + i) = *p; ++p; ++i; }
*(this->name + len) = 0;
}
else{
this->name = new char[7];
strcpy(this->name, "Unknow");
}
p = m_patronymic;
if (p){
len = strlen(p);
this->patronymic = new char[len + 1];
int i = 0;
while (*p){ *(this->patronymic + i) = *p; ++p; ++i; }
*(this->patronymic + len) = 0;
}
else{
this->patronymic = new char[7];
strcpy(this->patronymic, "Unknow");
}
}
Data::Data(char *m_surname, char *m_name, char *m_patronymic, int group, int ball){
this->surname = this->name = this->patronymic = NULL;
this->SetData(m_surname, m_name, m_patronymic, group, ball);
this->next = NULL;
}
Data::Data(){
this->surname = this->name = this->patronymic = NULL;
this->SetData(NULL, NULL, NULL, 0, 0);
this->next = NULL;
}
Data::~Data(){
delete[] this->name;
delete[] this->patronymic;
delete[] this->surname;
}
void Data::ShowData() const{
std::cout << surname << " " << name << " " << patronymic << "\nGroup:\t" << group << "\nBall:\t" << ball << std::endl;
}
class Stack{
Data *top;
public:
Stack();
~Stack();
void push(Data*);
Data const * const pop();
bool deletetop();
void clear();
};
Stack::Stack(){
top = 0;
}
void Stack::push(Data *data){
if (!data) return;
data->next = top;
top = data;
}
Data const * const Stack::pop(){
return top;
}
bool Stack::deletetop(){
if (top){
Data *p = top;
top = top->next;
delete p;
return ((top) ? true : false);
}
return false;
}
void Stack::clear(){
Data *p;
while (top){
p = top;
top = top->next;
delete p;
}
}
Stack::~Stack(){
this->clear();
}
int main(){
{
Data *p;
const Data *cp;
Stack stack;
setlocale(LC_ALL, "Russian");
int retval;
do{
cout << "Ваши действия:\n\t1 - Добавить элемент в стек,\n\t2 - Показать текущий элемент\n\t3 - Удалить текщий элемент\n\t4 - Очистить стек\n\tЛюбая другая клавиша - Выход\n\t->";
cin >> retval;
switch (retval){
case 1:
stack.push(new Data("Name", "Surname", "patronymic
1", 4, 5));
break;
case 2:
if (cp = stack.pop())
cp->ShowData();
else
cout << "Стек пуст\n";
break;
case 3:
if (!stack.deletetop())
cout << "Стек пуст\n";
break;
case 4:
stack.clear();
cout << "Стек очищен\n";
break;
default:
retval = 0;
}
} while (retval);
}
system("pause");
} |
(
