c++ Assume that StringVar.h has the following declaration:#include siostream>class stringvar {public:stringvar() : max_length(28) {value = new char[max_length+1];value[0] = '\e";// Default constructor size is 20stringvar(int size);// Takes an int for sizestringvar(const char cstr[]);// Takes a c-string and copies itstringvar(const stringvar& strobj);// Copy Constructor-stringvar();// Destructorint size() const { return max_length; }// Access capacityconst char* c_str() const { return value; } // Access valueint length() const { return strlen(value); } // Access lengthstringvar& operator= (const stringvar& rightobj);stringvar& operator+= (const stringvar& rightobj);std::istream& operator>> (std::istream& in, stringvar& strvar);std::ostreame operator<« (std::ostream& out, const stringvar& strvar);private:int max_length;char value;}; RESPONSE AREAOrganize answer blocks in the proper order:ANSWER BANKMove the necessary blocks over into the response area:delete [] temp;char* temp = this->value;strcat(this->value, rightobj.c_str());return *this;this->max_length = newlen;# // Concatenation assignment operator= for StringVar class.}# if (this == &right0bj) return *this;10# #include 11strcpy (this->value, temp);12# StringVar& StringVar::operator += (const StringVar& rightObj) {13if (this->max_length < newlen) {14# this->value[0] = '\0';# #include "StringVar.h"this->value = new char[this->max_length+1];int newlen = length()+rightObj.length();this->value = nullptr;

Below is the given data from 2nd image [1 temp; char" temp = this-value; strcat(this->value,…

ANSWER BANK Move the necessanry blocks over into the response area: delete () temp; char" temp- this->value; strcat(this->value, rightObj.c_str()); return this; this->max_length - newlen; H// Concatenation assignment operator for StringVar class. i if (this =- &rightobj) return *this; I #include strcpy(this->value, temp); I StringVar& StringVar::operator - (const StringVar& rightobj) { if (this->max_length < newlen) { i this->value[@] ▪ '\®*; I #include "StringVar.h" this->value - new char[this->max_length+1]; int newlen = length()+right0bj.length(); this->value nullptr;

ANSWER BANK Move the necessanry blocks over into the response area: delete () temp; char" temp- this->value; strcat(this->value, rightObj.c_str()); return this; this->max_length - newlen; H// Concatenation assignment operator for StringVar class. i if (this =- &rightobj) return this; I #include strcpy(this->value, temp); I StringVar& StringVar::operator - (const StringVar& rightobj) { if (this->max_length < newlen) { i this->value[@] ▪ '\®; I #include "StringVar.h" this->value - new char[this->max_length+1]; int newlen = length()+right0bj.length(); this->value nullptr;

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

c++

Assume that StringVar.h has the following declaration:
#include siostream>
class stringvar {
public:
stringvar() : max_length(28) {
value = new char[max_length+1];
value[0] = '\e";
// Default constructor size is 20
stringvar(int size);
// Takes an int for size
stringvar(const char cstr[]);
// Takes a c-string and copies it
stringvar(const stringvar& strobj);
// Copy Constructor
-stringvar();
// Destructor
int size() const { return max_length; }
// Access capacity
const char* c_str() const { return value; } // Access value
int length() const { return strlen(value); } // Access length
stringvar& operator= (const stringvar& rightobj);
stringvar& operator+= (const stringvar& rightobj);
std::istream& operator>> (std::istream& in, stringvar& strvar);
std::ostreame operator<« (std::ostream& out, const stringvar& strvar);
private:
int max_length;
char value;
};

RESPONSE AREA
Organize answer blocks in the proper order:
ANSWER BANK
Move the necessary blocks over into the response area:
delete [] temp;
char* temp = this->value;
strcat(this->value, rightobj.c_str());
return *this;
this->max_length = newlen;
# // Concatenation assignment operator= for StringVar class.
}
# if (this == &right0bj) return *this;
10
# #include <cstring>
11
strcpy (this->value, temp);
12
# StringVar& StringVar::operator += (const StringVar& rightObj) {
13
if (this->max_length < newlen) {
14
# this->value[0] = '\0';
# #include "StringVar.h"
this->value = new char[this->max_length+1];
int newlen = length()+rightObj.length();
this->value = nullptr;

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