OOP Lab 17: Custom CString Class Concatenation Operators

LIVE← Prev Next →

Problem Objective

Add dynamic operator overloading functions to a custom CString class managing dynamic heap character arrays:

Data Members & Memory:

◦
Private attributes: char* buffer, int length.
◦
Parameterized constructor CString(const char* str = "") allocating heap memory.
◦
Deep Copy Constructor CString(const CString& other).
◦
Destructor ~CString() releasing heap buffer with delete[].

Overloaded Operators:

◦
Assignment (operator=):
◦
CString& operator=(const CString& other)
◦
CString& operator=(const char* str)
◦
Concatenation (operator+):
◦
CString operator+(const CString& other) const
◦
CString operator+(const char* str) const
◦
Compound Concatenation (operator+=):
◦
CString& operator+=(const CString& other)
◦
CString& operator+=(const char* str)

In `main()`:

◦
Demonstrate assignment, object concatenation (s1 + s2), string literal concatenation (s1 + " World"), and compound concatenation (s1 += "!").

Expected Terminal OutputStandard Out

s1 = 'BytesLab'
s2 = ' Interactive'
s1 + s2 = 'BytesLab Interactive'
s1 + ' IDE' = 'BytesLab IDE'
s1 += ' Interactive IDE' -> 'BytesLab Interactive IDE'
s3 = 'Engine' -> 'Engine'

[✓] Custom CString operators verified (Time: 0.008s, Memory: 2.1 MB)

Execution Constraints

›Dynamic memory management with new char[] and delete[]
›Support both CString objects and const char* for +, +=, and =
›Null-terminate strings correctly

Implementation Checklist

Define CString class with dynamic char* bufferImplement copy constructor, destructor, and length calculationsOverload operator= for CString and const char*Overload operator+ for CString and const char*Overload operator+= for CString and const char*Test all concatenation and assignment operators in main()

main.cppg++ -std=c++20 -O2

Loading Bytes Space Editor...

BYTESLABVirtual Laboratory

BYTESLAB/C++/OOP/LAB-36

Hard