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

CGI, WHAT IS CGI?

WHAT IS CGI?

String-classes-constructors and member functions, Objective Using C++ s...

Objective Using C++ string, classes, constructors and member functions. Task A Write a program (book.cpp) to store a list of book titles and the published dates. Your pro

Jewel polishing, Byteland county is very famous for luminous jewels. Lumino...

Byteland county is very famous for luminous jewels. Luminous jewels are used in making beautiful necklaces. A necklace consists of various luminous jewels of particular colour. Nec

program generates cards at random, #include #include #include ...

#include #include #include #include #include //*Variables Used in Programs*// int k; int l; int d; int won; int loss; int cash = 500;

#include, Write a program to find the area under the curve y = f(x) between...

Write a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b. The area under a curve between two points can b

Advanced error checking and structures, It is standard on functions to prov...

It is standard on functions to provide some indication that the function has succeeded in its operation. Consider the Scanf function:     scanf("%d",&number1);   If the functio

Assigment Help, I need help in the C++ programming assignment. I can send t...

I need help in the C++ programming assignment. I can send the files the assignment is times 3hrs.

C program to string compression, C program to string compression: Writ...

C program to string compression: Write a program to define a sting and all operations on string. void main()                                 {

C++ project, project on business management

project on business management

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