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

Develop pidgin for windows, Develop Pidgin for Windows Project Descripti...

Develop Pidgin for Windows Project Description: I want to build Pidgin (open source instant messenger) for Windows with D-Bus support enabled. I've effectively built both

Create a programming system, Your task is to create a programming system fo...

Your task is to create a programming system for a ferry. The ferry transports passengers and vehicles (cars, busses, lorries and bicycles). The ferry has space for 200 passengers a

Program to calls to echo the typed characters, Write a main program that us...

Write a main program that uses these system calls to echo the typed characters. The pseudo code will look something like: void traphandler ()  {    if (R0 == 0) { // read sys

Algorithm, Sine function computation

Sine function computation

Algorithm, Algorithm for railway ticket booking process

Algorithm for railway ticket booking process

Simple text editor using c programming in linux environment, Deliverables: ...

Deliverables: you are required to upload your c code in the assignment dropbox set in Moodle. You are supposed to work with Linux gcc compiler and pico editor for compiling via the

What is a recursive function, Question 1 Write a program in ‘C' to check w...

Question 1 Write a program in ‘C' to check whether a given number is even or odd Question 2 Explain while and do... while loop with an example Question 3 Write a program

Write a simple telephone book program, Write a simple telephone book progra...

Write a simple telephone book program that stores the names and phone numbers of your friends/acquaintances in a file. Your program should have the abilities to: a. Add entries (na

Write a recursive function with cylinders, I need to make a fractal trees i...

I need to make a fractal trees in OpenGL C++ . The method used is to write a recursive function with cylinders of different sizes and angles to create the tree trunk and branches.

A program that divides the screen into n vertical bars, Write a function th...

Write a function that takes in a number n and divides the screen into n vertical bars, alternating black and white. (What should you do if someone puts in n=0 or n=-99?)

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