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 calculation of mortgage interest rates, This assignment builds o...

This assignment builds on Homework 3. The two major modifications are the instruction of pointers and the calculation of mortgage interest rates. Requirements for Project 2:

Differences between a pointer and a reference, Differences between a pointe...

Differences between a pointer and a reference 1.  A reference must always point to some object where as this restriction is not imposed on a pointer. e.g. int *pi = 0;

Miss, Depreciation to a salvage value of 0. For tax purposes an item m...

Depreciation to a salvage value of 0. For tax purposes an item may be depreciated over a period of several years, n. With the straight line method of depreciati

When i develop a destructor, When I develop a destructor, do I require to e...

When I develop a destructor, do I require to explicitly call the destructors for my member objects?

Pointers, In this sub-task will you implement three functions for the final...

In this sub-task will you implement three functions for the final three function prototypes that will do exactly the same as the three functions that you have just written. This ti

Program on lexicographical order, Introduction. In this assignment you are...

Introduction. In this assignment you are required to revisit the Assignment 1 topic. You will develop a new program which is more sophisticated, in particular, adding more functio

Compiler design limiting instruction, Ravi is a newbie to the programming a...

Ravi 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 ''''}

Program to open a file in c++, Program to Open a file in C++: int main...

Program to Open a file in C++: int main() {                  char ch;                  ifstream f1 ("OLDFILE.TXT");                  ofstream f2 ("NEWFILE.TXT");

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