return string from function

This code is made in BCB where it's actually useless, but try to understand the code.
The button function is just for testing and showing how it works.

#define MAX_LENGTH 255
class MyStringHandle {
public:
bool operator == (char *p1);
char* operator = (char *p1);
char* operator + (char *p1);
char *c_str( void );
MyStringHandle( void );
~MyStringHandle( void );
private:
char *string;
};

char *MyStringHandle::c_str(void) {
return string;
}

MyStringHandle::MyStringHandle(void) {
string = new char[MAX_LENGTH];
}
MyStringHandle::~MyStringHandle(void) {
delete string;
}
bool MyStringHandle::operator == (char *p1) {
char *p2= this->string;
while ((*(p1++) == *(p2++)) && (*p1) && (*p2));
return !((*p1) || (*p2));
}

char *MyStringHandle::operator + (char *p1) {
char *temp = new char[MAX_LENGTH];
int start = (int)temp;
int tmp = (int)string;
while (*(char *)tmp) *(temp++) = *(char *)(tmp++);
while (*p1) *(temp++) = *(p1++);
*temp = 0;
return (char *)start;
}
char *MyStringHandle::operator = (char *p1) {
char *p2= this->string;
while (*p1) *(p2++)=*(p1++);
*p2 = 0;
return this->string;
}
void __fastcall TForm1::Button1Click(TObject *Sender)
{
MyStringHandle MyString;
MyString = "Hello, World of strings";
if (MyString == "Hello, World of strings")
ShowMessage(MyString.c_str());
MyString = MyString + " and then some...";
ShowMessage(MyString.c_str());
delete &MyString;
Application->Terminate();
}

Thank ungamed , Danny

I am try to create find function to find any node and return value of other field

Example:

struct node
{
int id;
char *data;
node *link;
}*p;

here i want pass id to find function to return data. this is like "search" ... i thank

please if anyone have any idia tell me .

Thank for all active member.

class linklist
{
private:

struct node
{
int id;
char *data;
node *link;
}*p;

public:
linklist();
void append(int,char *num );
void del( int );
void display();
int count();
int find( int id );
~linklist();
};

linklist::linklist()
{
p=NULL;
}

// add function
void linklist::append(int id,char *num)
{

node *q,*t;

if( p == NULL )
{

p = new node;
p->id =id;
p->data = new char[255];
strcpy(p->data, num);
p->link = NULL;
}
else
{
q = p;
while( q->link != NULL )
q = q->link;

t = new node;
t->id =id;
t->data = new char[255];
strcpy(t->data, num);
t->link = NULL;
q->link = t;
}
}

//delete fiunction
void linklist::del( int id )
{

node *q,*r;
q = p;

if (q->id == id)
{
p = q->link;
delete q;
return;
}

r = q;
while( q!=NULL )
{

if (q->id==id)

{

r->link = q->link;
delete q;
return;
}

r = q;
q = q->link;
}
cout<<"\n CAR BORDNUMBER ["<<id <<"] not Found.\n";
}

char* carname;
int linklist::find( int id )

{

node *q,*r;
q = p;

if (q->id == id)
{
p = q->link;
carname=q->data;
return q->id;
}

r = q;
while( q!=NULL )
{

if (q->id==id)

{

r->link = q->link;
carname=q->data;
return q->id ;
}

r = q;
q = q->link;
}
cout<<"\n CAR BORDNUMBER ["<<id <<"] not Found.\n";
}
int linklist::count()
{
node *q;
int c=0;
for( q=p ; q != NULL ; q = q->link )
c++;

return c;
}

void linklist::display()
{
node *q;

for( q = p ; q != NULL ; q = q->link )
cout << "ID :"<<q->id <<" Car Name : "<< q->data << endl;

}



linklist::~linklist()
{
node *q;
if( p == NULL )
return;

while( p != NULL )
{
q = p->link;
delete p;
p = q;
}
}