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

Define the object-oriented terms, Question : (a) Define the following O...

Question : (a) Define the following Object-Oriented terms: (i) Encapsulation (ii) Inheritance (iii) Abstraction (iv) Polymorphism. (b) What are objects in Lingo progra

Memory allocation for objects, when a class is defined the compiler will no...

when a class is defined the compiler will not allocate memory. This is true only for data member not for member function.  As soon as the member function is defined  the require

Write a function that takes in radius and cover screen, Write a function th...

Write a function that takes in a radius and evenly covers the screen with circles of that radius. Don't attempt to draw any circles that are completely off the screen.

Write a recursive implementation of euclid algorithm, Write a recursive imp...

Write a recursive implementation of Euclid's algorithm for finding the greatest common divisor (GCD) of two integers. Descriptions of this algorithm are available in algebra books

C++ code??, Write a program to find the area under the curve y = f(x) betwe...

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

How can dereferencing the pointer this, Dereferencing the Pointer this ...

Dereferencing the Pointer this Sometimes a member function requires to make a copy of the invoking instance so that it can change the copy without affecting the original instan

Class booking system, I want source code for class booking system by using ...

I want source code for class booking system by using C++ Programming...Urgent

Assignment, manupulates operator precidence

manupulates operator precidence

Use of a windows box, This program requires the use of a windows box, no co...

This program requires the use of a windows box, no console applications are allowed. Prepare for Christmas now.  Each year, Reindeer Gift Emporium publishes a Christmas price list

Why php is sometimes called as embedded scripting language, Why PHP is some...

Why PHP is sometimes called as embedded scripting language? PHP is a high level language that is used to allow users to write and understand it in human readable form and also

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