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 use of functions in c++ programs, Question: (a) Write shor...

Question: (a) Write short notes on arrays. Extend your answer by putting emphasis on memory allocation. (b) Write a C++ program to input an integer n followed by n real-

Wap for the game hangman-using functions with txt graphics, The game of han...

The game of hangman may have originated in the Victorian era, and involves trying to guess a word by suggesting letters. The game is played as follows: A word is chosen and the pl

Explain union, Unions A union is also like a structure, except that onl...

Unions A union is also like a structure, except that only single variable in the union is stored in the allocated memory at a time. It is a collection of mutually exclusive var

Help, what is c++ ?

what is c++ ?

Assignment, Write a program that computes the cost of a long distance call....

Write a program that computes the cost of a long distance call. The cost of the call is determined according to the following rate schedules. a. A call made between 8:00 AM and

C program to change feet and inches into meter, Aim: To implement a progra...

Aim: To implement a program to convert distance given in feet and inches into meters and centimeters and vice versa. Code:                         class mcm; class

Compiling/ installing openvpn client within an ip camera, Project Descripti...

Project Description: I want someone with experience on adding/compiling/installing the OpenVPN client software within an IP network camera's embedded operating system. Either if

Setup and source code with nice user interface, Virtual Webcam effects - Se...

Virtual Webcam effects - Setup and Source code with Nice User Interface Project Description: I want a similar webcam effects application which can apply effects to webcam fee

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