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

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 t

Board coloring, color representation 0,1,2,3,4,5,6,7...

color representation 0,1,2,3,4,5,6,7...

Type cast operator, What is  T y pe C a s t Op er a t o r :...

What is  T y pe C a s t Op er a t o r :   T h e f l o a t c a n b e c o n v e r t e d t o i n t e g e r v a l u

Flowcharting, how to create a flowchart? can you help me in my assignment a...

how to create a flowchart? can you help me in my assignment about flowcharting ....

Set performance data and print tickets, Create a class  called  ticketSelli...

Create a class  called  ticketSelling that stores booking information of a single performance on a single day and sells the tickets of the performance. The class should include at

Subrotine assembly language, You have to write a subroutine (assembly langu...

You have to write a subroutine (assembly language code using NASM) for the following equation.

Develop diablo 2 lod 1.13d dupe method for closed battle.net, Develop Diabl...

Develop Diablo 2 LOD 1.13d Dupe Method for Closed Battle.net This hack is for diablo 2 lord of destruction The program must work on all realms, all cores, all ladders (4x rea

How many ways are there to initialize an int with a constant, There are two...

There are two ways for initializes in C++ as shown in the example that follows. The first way uses the traditional C notation. The second way uses constructor notation. int foo

Bitcoin alternative – deployment and modification, I started preparing an a...

I started preparing an alternative cryptocurrency and I am way over my head. I would like help in making modifications to the open source files and then help with deployment. I wil

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