Smart Pointers, C++ (gcc)

Smart Pointers

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#include <bits/stdc++.h>

using namespace std;

template <class myType> 
struct SmartPointer{
    myType* ptr;
    
    SmartPointer(myType* x) : ptr(x){}
    
    ~SmartPointer(){
        cout << "Smart Pointer Destructor ;P" << endl;
        delete ptr;
    }
};

struct SmartPointerHelper{
	vector<SmartPointer*> all;

template <class myType>
	myType* get_new(){
		myType* ptr = new myType();
		all.push_back(new SmartPointer<myType>(ptr));
        return ptr;
	}

~SmartPointerHelper(){
		cout << "Starting to deallocate all dynamically allocated pointers..." << endl;
        // the vector is destroyed and in turn all the SmarPointers are destroyed correctly :)
        for(int j = (int)all.size()-1; j >= 0; j--) delete(all[j]);
		cout << "All the dynamic memory is deallocated successfully!" << endl;
	}
};

SmartPointerHelper smp;

struct node{
	int x;
	node* ptr;

node(int _x = 0) : x(_x){
		cout << "node constructor called..." << endl;
		ptr = NULL;
	}

~node(){
		cout << "node destructor called..." << endl;
	}
};

int main(){
	int *dynamic_int = smp.get_new<int>();
	node* dynamic_node = smp.get_new<node>();
	return 0;
}

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Compilation time: 1.74 sec, absolute service time: 1,75 sec

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Error(s):

source_file.cpp:18:22: error: template argument 1 is invalid
  vector<SmartPointer*> all;
                      ^
source_file.cpp:18:22: error: template argument 2 is invalid
source_file.cpp: In member function ‘myType* SmartPointerHelper::get_new()’:
source_file.cpp:23:7: error: request for member ‘push_back’ in ‘((SmartPointerHelper*)this)->SmartPointerHelper::all’, which is of non-class type ‘int’
   all.push_back(new SmartPointer<myType>(ptr));
       ^
source_file.cpp: In destructor ‘SmartPointerHelper::~SmartPointerHelper()’:
source_file.cpp:30:30: error: request for member ‘size’ in ‘((SmartPointerHelper*)this)->SmartPointerHelper::all’, which is of non-class type ‘int’
         for(int j = (int)all.size()-1; j >= 0; j--) delete(all[j]);
                              ^
source_file.cpp:30:65: error: invalid types ‘int[int]’ for array subscript
         for(int j = (int)all.size()-1; j >= 0; j--) delete(all[j]);
                                                                 ^
source_file.cpp: In function ‘int main()’:
source_file.cpp:52:7: warning: unused variable ‘dynamic_int’ [-Wunused-variable]
  int *dynamic_int = smp.get_new<int>();
       ^
source_file.cpp:53:8: warning: unused variable ‘dynamic_node’ [-Wunused-variable]
  node* dynamic_node = smp.get_new<node>();
        ^