Tray, C++ (gcc) - rextester

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//g++  7.4.0

#include <iostream>
using namespace std;
template <class T>
class Tray{
private:
int size;
int top;
T* data;

public:
Tray(int s=100) : size(s),top(-1){ data=new T[size];}
~Tray(){delete [] data;}
void push(const T& x) {data[++top]=x;}
T pop(){return data[top--];}
int isEmpty() const {return top==-1;}
int isFull() const { return top==size-1;}
};
int main ()
{
Tray<int> iTray1(5);
Tray<int> iTray2(10);
Tray<char> cTray(10);
cTray.push('R');
cTray.push('A');
cTray.push('E');
cTray.push('Y');

iTray1.push(0);
iTray1.push(2);
iTray1.push(0);

iTray1.push(2);

cout<<cTray.pop()<<endl;
cout<<cTray.pop()<<endl;
cout<<cTray.pop()<<endl;
cout<<cTray.pop()<<endl;
cout<<endl;
cout<<iTray1.pop()<<endl;
cout<<iTray1.pop()<<endl;
cout<<iTray1.pop()<<endl;
cout<<iTray1.pop()<<endl;
if(iTray1.isEmpty()) cout<<"iTray1 is empty.";
else cout<<"iTray1 is not empty.";

if(iTray2.isEmpty()) cout<<"\niTray2 is empty.";
else cout<<"iTray2 is not empty.";

if(cTray.isFull()) cout<<"\ncTray is full.";
else cout<<"\ncTray is not full.";
return 0;
}

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Compilation time: 1.3 sec, absolute running time: 0.18 sec, cpu time: 0.01 sec, memory peak: 5 Mb, absolute service time: 1,64 sec