ingVar() i max_length(20) value - new char(max_length+1]; value(0) - '\0': Default constructor $ize is 20 StringVar(int size); // Takes an int for size StringVar(const char estr(]); I/ Takes a c-string and copies it StringVar(const StringVars strobj); // Copy Constructor StringVar(): // Destructor int size() const ( return max_length; ) // Aecess capacity

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
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Need help with nongraded c++ task, question is posted on image

Implement the copy assignment operator= for the StringVar class using the options given on the right side window. Place the code into the left side using the arrows. It is possible to get the test case correct but not complete
NOTE: Be careful! There are decoys! The this pointer is used extensively.
Assume that StringVar.h has the folowing declaration:
#include <iostream
class StringVar {
public:
StringVar () : max_length (20) (
value - new char[max_length+1];
value(0] - '\0';
// 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 StringVars 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
StringVars operator- (const StringVars rightobj);
stdi:istreams operator>> (std::istreama in, StringVars strVar);
std::ostreams operator<< (std::ostreama out, const StringVars strvar);
private:
int max_length;
char value;
} ;
Transcribed Image Text:Implement the copy assignment operator= for the StringVar class using the options given on the right side window. Place the code into the left side using the arrows. It is possible to get the test case correct but not complete NOTE: Be careful! There are decoys! The this pointer is used extensively. Assume that StringVar.h has the folowing declaration: #include <iostream class StringVar { public: StringVar () : max_length (20) ( value - new char[max_length+1]; value(0] - '\0'; // 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 StringVars 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 StringVars operator- (const StringVars rightobj); stdi:istreams operator>> (std::istreama in, StringVars strVar); std::ostreams operator<< (std::ostreama out, const StringVars strvar); private: int max_length; char value; } ;
IExit Full Screen
RESPONSE AREA
ANSWER BANK
Organize answer blocks in the proper order:
Move the necessary blocks over into the response area:
# StringVar& StringVar:: operator = (const Stringvará rightobj)
i StringVar *this;
# // Copy Assignment operator= for StringVar class.
# strepy(rightobj.value, value);
# #include <estring>
# if (length) < rightobj.size()) {
10
# #include "StringVar.h"
11
return *this;
12
if (this->max_length < rightobj.length()) {
13
14
this->value = new char[this->max_length+1];
15
# if (c_str () < rightObj.c_str)) {
if (this !- arightobj) {
strcpy (this->value, rightobj.c_str());
this->max_length = rightobj.length();
delete this->value;
I if (*this =- rightobj) {
Transcribed Image Text:IExit Full Screen RESPONSE AREA ANSWER BANK Organize answer blocks in the proper order: Move the necessary blocks over into the response area: # StringVar& StringVar:: operator = (const Stringvará rightobj) i StringVar *this; # // Copy Assignment operator= for StringVar class. # strepy(rightobj.value, value); # #include <estring> # if (length) < rightobj.size()) { 10 # #include "StringVar.h" 11 return *this; 12 if (this->max_length < rightobj.length()) { 13 14 this->value = new char[this->max_length+1]; 15 # if (c_str () < rightObj.c_str)) { if (this !- arightobj) { strcpy (this->value, rightobj.c_str()); this->max_length = rightobj.length(); delete this->value; I if (*this =- rightobj) {
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