C + + operator overload four (custom array Class)

//Custom Array Classes#include <iostream>using namespacestd;//Analysis: Ability to get array lengths, add elements, delete elements, modify elements//require overloading [],=,==,!= operatorclassmyarray{Private:    intmlength; int*Mspace; Public: MyArray (intlength) {cout<<"The parameter constructor is called 1"<<Endl; Mlength=length; Mspace=New int[Mlength]; memset (Mspace,0,sizeof(int)*mlength); } MyArray (Constmyarray&obj) {cout<<"the copy constructor was called 2"<<Endl; Mlength=obj.mlength; Mspace=New int[Mlength]; inti =0;  for(i =0; i < mlength; i++) {Mspace[i]=Obj.mspace[i]; }    }    intLength () {returnmlength; }    voidSetData (intIndexintvalue) {        if(Index> (mlength-1) ) {cout<<"array out of bounds! "<<Endl; return; } Mspace[index]=value; }    intGetData (intindex) {        if(Index> (Mlength-1) ) {cout<<"array out of bounds! "<<Endl; return 0; }        returnMspace[index]; }    voidPRINTFA () { for(inti =0; i < mlength; i++) {cout<<"Section"<<i<<"an element is"<< Mspace[i] <<Endl; }    }    ~MyArray () {cout<<"destructors are called 3"<<Endl; if(mspace!=NULL) {            Delete[] mspace; } mlength=0; } Public:    //[] operator overloading    int&operator[](intnum) {        if(Num> (mlength-1) ) {cout<<"array out of bounds! "<<Endl; returnMspace[mlength-1]; }        returnMspace[num]; }    //= operator OverloadingMyArray &operator= (MyArray &obj) {Mlength=obj.mlength; if(mspace==NULL) {Mspace=New int[Mlength]; }        Else{            //releasing the original array memory            Delete[] mspace; Mspace=New int[Mlength]; }        inti =0;  for(i =0; i < mlength; i++) {Mspace[i]=Obj.mspace[i]; }        return* This; }    //= = operator overloading    BOOL operator= = (MyArray &Myarr) {        BOOLFlag =true; if(Mlength! =myarr.mlength) {flag=false; returnFlag; }         for(inti =0; i < mlength; i++)        {            if(Mspace[i]! =Myarr.mspace[i]) {Flag=false;  Break; }        }        returnFlag; }    //! = operator overloading    BOOL operator! = (MyArray &Myarr) {        BOOLFlag =false; if(Mlength = =myarr.mlength) { for(inti =0; i < mlength; i++)            {                if(Mspace[i]! =Myarr.mspace[i]) {Flag=true;  Break; }            }        }        Else{flag=true; }        returnFlag; }};voidProtecta () {MyArray arr (Ten); Arr.    PRINTFA (); //ARR[10];    arr[10]=2; //based on demand reasoning out that the parameter list is an int return value is int &//int & arr.operator[] (int num)arr[5]=5; Arr.    PRINTFA (); //Arr1=arr; Assignment Operation//Analysis: Function name operator= (); operand 2 (not involving System class library) arr.operator= (MyArray &arr1)//because there is ARR1=ARR2=ARR3, so the return value MyArray &; Result: MyArray & operator= (MyArray &arr1)MyArray ARR2 (5); arr2[0] =1; arr2[2] =1; arr2[3] =1; arr2[4] =1; arr2[1] =1; Arr=arr2; Arr.    PRINTFA (); }voidPROTECTB () {//Arr1==arr; Judging if they are equal//Analysis: Function name operator== (), there are 2 operand arr1.operator== (arr) return values: determine equality then definitely return bool value//results: bool operator== (MyArray &myarr)MyArray arr1 (3), ARR2 (5); if(arr1 = =arr2) {cout<<"the two arrays are equal"<<Endl; }    Else{cout<<"the two arrays are not equal"<<Endl; }    if(Arr1! =arr2) {cout<<"These two numbers are not equal to each other"<<Endl; }    Else{cout<<"the two arrays are equal"<<Endl; }}voidMain () {PROTECTB (); System ("Pause");}

C + + operator overload four (custom array Class)