template array class is not working properly - c++

Question

Template class :
#ifndef ARRAYC_H
#define ARRAYC_H
#include <iostream>
using namespace std;
template <class T>
class Array
{
private:
T* m_ptr;
int m_size;
public:
Array();
Array(int size);
~Array();
int size() const;
bool is_Empty() const;
T& operator[](int index);
};
#endif
and class declaration Header..
#ifndef ARRAY_H
#define ARRAY_H
#include "ArrayC.h"
using namespace std;
template <class T>
Array<T>::Array(int size) {
if(size!=0) {
T* m_ptr = new T[size]{};
m_size = size;
}
}
template <class T>
Array<T>::~Array() {
cout <<"Deleted" << endl;
delete [] m_ptr;
}
template <class T>
int Array<T>::size() const {
return m_size;
}
template <class T>
bool Array<T>::is_Empty() const {
return (m_size==0);
}
template <class T>
T& Array<T>::operator[](int index) {
if(index< m_size) {
return m_ptr[index];
}
else {
cout <<"Index Specifed is out of Range" << endl;
exit(0);
}
}
#endif
program
#include "Array.h"
#include <iostream>
using namespace std;
int main() {
Array<int> A(2);
A[0] = 1;
A[1] = 2;
cout << A[0] << endl;
cout << A[1] << endl;
}
it compiles and also outputs value but
then it stops and then makefile shows error.
g++ -g -std=c++17 -c -o Main.o Main.cpp
g++ -g -std=c++17 -o Execute Main.o
Execute
1
2
Deleted
Makefile:13: recipe for target 'run' failed
mingw32-make: *** [run] Error -1073741819
after deleted is printed it stops for some time and then shows error.
run target only has one recipe that is to execute the program Execute.exe.
Really sorry for this type of description
but its doesnt show any type of error.
CCX_FLAGS = g++ -g -std=c++17
CCX_OF = -o
CCX_CF = -c
.PHONY : all preExwork Obclean Exclean
all : preExwork run Obclean
preExwork :
$(CCX_FLAGS) $(CCX_CF) $(CCX_OF) Main.o Main.cpp
$(CCX_FLAGS) $(CCX_OF) Execute Main.o
run :
Execute
Obclean :
del /f Main.o
Exclean :
del /f Execute.exe