Dynamic initialization of objects and dynamic constructor, C/C++ Programming

Assignment Help:

Dynamic Initialization of objects:

It is initializing the objects by passing the valued to the constructor from the user input or

other means.   Through cin operator a value can be stored in a variable and passed through a constructor this form of initializing an object is known dynamic initialization.

Dynamic Constructor:

The memory allocation for a constructor can be managed using new operator called new,

similarly the memory can be free with another operator called deleter.

 

class dynmem

{ char *name;

int length;

public:

dynmem(void)

{length =0;

name = new char[length+1];

}

dynmem(char *s)

{length = strlen(s);

name = new char[length+1];//for null terminator

strcpy(name,s);

}

void display(void)

{cout<

}

void join(dynmem &a, dynmem &b);

};

void dynmem::join(dynmem &a, dynmem &b)

{length = a.length+b.length;

delete name;

name = new char[length+1]; strcpy(name,a.name); strcat(name,b.name);

};

void main()

{

clrscr();

char *first="Electronic ";

dynmem name1(first);

dynmem name2("and Communication ");

dynmem name3("Engineering"); dynmem s1,s2; s1.join(name1,name2); s2.join(s1,name3); name1.display();

name2.display(); name3.display(); s1.display(); s2.display();

}


Related Discussions:- Dynamic initialization of objects and dynamic constructor

Program to determine the number is prime or not, Write a function to determ...

Write a function to determine whether a number is prime: it will return true if the input is prime and false otherwise. Use it to see whether -7 is prime.

How to implement tr- 106 protocol, Environment - C, Linux Duration - De...

Environment - C, Linux Duration - December 2006 to Feb 2007 Description - TR-106 specifies a generic data model template applicable for all TR-069 enabled devices. Adde

Fundamental input - output routines getc and putc, Access to the channel/de...

Access to the channel/devices is achieved by means of general purpose I/O routines Theses are standard functions described in stdio.h header file namely getc and putc. Getc and put

Car rental project, I need a project on car rental system using c programmi...

I need a project on car rental system using c programming only of college level

Find area under curve, write a c program to find the area under the curve4...

write a c program to find the area under the curve4 f=(x) between x=a and x=l integrate y=(x) between the limits of a and b Solution: #include float    start_point,

Algorithm and flowcharts, algorithm to find out all the factors of given po...

algorithm to find out all the factors of given positive integers

Strings, A string S is said to be "Super ASCII", if it contains the charact...

A string S is said to be "Super ASCII", if it contains the character frequency equal to their ascii values. String will contain only lower case alphabets (''a''-''z'') and the asci

COMPILER DESIGN, aj is a newbie to the programming and while learning the p...

aj is a newbie to the programming and while learning the programming language he came to know the following rules: - Each program must start with ''{'' and end with ''}''.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd