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

Introduction to c programming, How would you print the values of the variab...

How would you print the values of the variables words and lines so they appear in the form: There were 6040 words and 680 lines. Here, 6040 and 680 represent the values of the two

Algorithms flow charts and psuedocode, How to write C program (interest cal...

How to write C program (interest calculator) the simple interest on a loan is calculated by the formula interest=principal*rate*days/365; ?

Super ansii prgm, Ask quIn the Byteland country a string "s" is said to sup...

Ask quIn the Byteland country a string "s" is said to super ascii string if and only if count of each charecter in the string is equal to its ascci value in the byteland country as

Define name mangling in c++??, A: The procedure of encoding the parameter t...

A: The procedure of encoding the parameter types along with the function/method name into a unique name is called as name mangling. The inverse procedure is called demangling. F

Write a program to act as an electronic safe, Write a program to act as an ...

Write a program to act as an electronic safe. If the correct code has been entered the program should display "Safe Open".  If an incorrect code is input it should display "Alarm"

Program to calculation of mortgage interest rates, This assignment builds o...

This assignment builds on Homework 3. The two major modifications are the instruction of pointers and the calculation of mortgage interest rates. Requirements for Project 2:

Insertion sort - c program, Insertion sort - C program: Write a progra...

Insertion sort - C program: Write a program in c to define a insertion sort. void main()  {   clrscr();   int a[100],ch,n;   cout   cin>>n;   for (int i=0

Illustrate bit fields with structures, C language lets us do this in a stru...

C language lets us do this in a structure definition by putting: bit length after the variable that is. struct packed_struct { unsigned int f1:1; unsigned int f2:1; unsigned

Client-server architecture Project, I need a client-server architecture pro...

I need a client-server architecture program for windows OS (minimum support: Win 7),. the agent program will run as a background process and perform certain tasks every X time, and

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