#include<iostream.h>
#include<conio.h>
#define maks 5
class Stack{
friend ostream& operator<<(ostream&,const Stack&);
public:
Stack();
int penuh(int);
int kosong(int);
void cetak();
void push(char);
char pop();
private:
char A[maks];
int banyak;
};
ostream& operator<<(ostream& out,const Stack& s)
{ cout<<"\nIsi stack:";
for(int i=0;i<s.banyak;i++)
out<<s.A[i]<<"";
}
Stack::Stack(){
banyak=0;
for(int i=0;i<maks;i++)
A[i]='o';
}
int Stack::penuh(int s)
{ return s==maks?1:0;}
int Stack::kosong(int s)
{ return s==0?1:0;}
void Stack::cetak()
{ cout<<"\nIsi Stack:";
for(int i=0; i<banyak;i++)
cout<<A[i]<<"";}
void Stack::push(char x)
{ cout<<"\nElemen masuk:"<<x;
if(penuh(banyak))cout<<"Stack penuh";
else if(A[0]=='0'){
A[0]=x;
banyak++;}
else{
for(int i=banyak;i>=0; i--)
A[i+1]=A[i];
A[0]=x;
banyak++; }
}
char Stack::pop()
{ cout<<"\npop stack,elemen yang di-pop:"<<A[0];
char temp=A[0];
for(int i=0; i<banyak; i++)A[i]=A[i+1];
A[banyak]='0';
banyak--;
return temp;
}
int main(){
Stack stack;
for(char c='a'; c<'d';c++){
stack.push(c);
stack.cetak();
}
char p=stack.pop();
stack.cetak();
cout<<"\n\nCetak pakai overloading:"<<stack;
getch();
return 0;
}
hasil:
