Explain the changing field width, C/C++ Programming

Assignment Help:

Changing Field width

The printf() and scanf() functions from the standard library, use width specifier for controlling the width of its output . Similarly, the ostream class also has a member function width() for the same. This function has the following prototype.

                int width(void);

                int width(int newsize);

The first form returns the current field width. The default is always zero. That is because, the cout object always uses space just wide enough to output the values and a default size if zero matches all. The second form can be used to alter the current width setting. The argument passed to it is the new width to be set. It also returns the previous width. The width () function affects only the next item displayed. The filed width reverts to default afterwards.

e.g.

                void main()

                 {

                                cout<<" default width="<< cout.width()<

                                cout<<"[";

                                cout.width(10);                                 Set width to 10

                                cout<<"A";

                                cout<<"]";

                }

 


Related Discussions:- Explain the changing field width

Explain the scope resolution operator, The Scope Resolution Operator( :: ) ...

The Scope Resolution Operator( :: ) Global variables are explained outside any functions and thus can be used by all the functions defined thereafter. However, if a global vari

Implement a algorithm to verify if the link list , Implement a Algorithm to...

Implement a Algorithm to verify if the link list is in Ascending order? A: template bool linklist::isAscending() const{ nodeptr ptr = head; while (ptr->_next)

Develop an e commerce site, We need an E Commerce site likefifacointrader. ...

We need an E Commerce site likefifacointrader. you must have experience with that kind of work You have to show a sample of work like that site. Skills required are C Prog

Microprocessors and motherboards, The heart of the modern electronic system...

The heart of the modern electronic system is the microprocessor e.g. the video, sound, game consoles, portable phones and domestic appliances. Let us consider the heart of a home c

Develop activation tool for unattend reseal.xml, Project Description: We...

Project Description: We refurbish older computer and send them back into the market with windows 7 operating system. We are presently using windows deployment services through P

#Padovan string, A Padovan string P(n) for a natural number n is defined as...

A Padovan string P(n) for a natural number n is defined as: P(0) = ‘X’ P(1) = ‘Y’ P(2) = ‘Z’ P(n) = P(n-2) + P(n-3), n>2 where + denotes string concatenation. For a string of the c

Program, Write a ‘C’ program to accept any 3 digit integer number from the ...

Write a ‘C’ program to accept any 3 digit integer number from the keyboard and display the word equivalent representation of the given number.

Structure and classes in c++, want to understand the working of structure a...

want to understand the working of structure and classes

Singly linked list, For this program you will add and test 2 new member fun...

For this program you will add and test 2 new member functions to the IntSLList class posted on the website. The two member functions are: insertByPosn(int el, int pos) Assuming t

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