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

C program, program for lexicographically precedes the given input permutati...

program for lexicographically precedes the given input permutation

Boardcoloring, how to fill the blank space in4*4 matrix?

how to fill the blank space in4*4 matrix?

Define structures in c++, Structures A structure is a user-defined data...

Structures A structure is a user-defined data type, which may have different data types as its members. Creating a structure is a two-part process. First, a structure template

Define the arithmetic operators in c language, Define the Arithmetic Operat...

Define the Arithmetic Operators in c Language? There are five arithmetic operators in C and they are Operator             Purpose +                        Addition -

Explain default arguments, Default Arguments A default argument is a va...

Default Arguments A default argument is a value that is automatically assigned to a formal variable, if the actual argument from the function call is omitted. e.g. void

Oop, what is oop?

what is oop?

Area of curve, Write a program to find the area under the curve y = f(x) be...

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

Coding, I want MODI method''s coding in c++ using all concepts of c++..plea...

I want MODI method''s coding in c++ using all concepts of c++..please help me its my project work...

Program that implements inference given a bayesian network, In this problem...

In this problem, you will write a program that implements two algorithms for performing exact inference given a Bayesian network, namely, enumeration and variable elimination. Your

String routines in c, Available in the string.h header file are the followi...

Available in the string.h header file are the following routines         strcat(string1,string2);   This joins string2 to string1; care must be taken to allocate enough space for

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