C++用類模板寫一個棧

C++用類模板寫一個棧

#include <bits/stdc++.h>
using namespace std;
template <class Tclass>
class Tstack {
 public:
  void push(Tclass const &elem);
  Tclass pop();
  Tstack();
 private:
  Tclass elems[11111];
  int top;
};
int main() {
 try {
  Tstack<int> ints;
  ints.push(0);
  ints.push(1);
  ints.push(3);
  cout<<ints.pop()<<endl;
  cout<<ints.pop()<<endl;
  cout<<ints.pop()<<endl;
  Tstack<string> strings;
  strings.push("Hello, World!");
  cout<<strings.pop()<<endl;
  Tstack<char> chars;
  chars.push('@');
  chars.push('#');
  cout<<chars.pop()<<endl;
  cout<<strings.pop()<<endl;
  cout<<chars.pop()<<endl;
 }
 catch (const char *err) {
  cerr<<"Error(main()):\t"<<err<<endl;
  return -1;
 }
 return 0;
}
template <class Tclass>
void Tstack<Tclass>::push(Tclass const &elem) {
 if (this->top >= 10000) throw "Tstack<Tclass>::push():overflow";
 ++ this->top;
 this->elems[this->top] = elem;
 return;
}
template <class Tclass>
Tclass Tstack<Tclass>::pop() {
 if (this->top <= 1) throw "Tstack<Tclass>::pop():underflow";
 -- this->top;
 return this->elems[this->top + 1];
}
template <class Tclass>
Tstack<Tclass>::Tstack() {
 this->top = 1;
 return;
}

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