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

Produce data from fixed ocr areas scanned, Produce data from fixed OCR area...

Produce data from fixed OCR areas scanned. Project Description: Project is to design software which can use character recognition only on certain areas of scanned puff's/ jpe

Get all table list from current database , i am using otlv4 for database co...

i am using otlv4 for database connecttvity, while i try to get all tables list from current database using query "$SQLTables" no output is displayed though programe compiles coretl

Define the float data type of c language, Define the Float Data Type of c L...

Define the Float Data Type of c Language? The float is used to define floating point numbers. The Floating point numbers are stored in 32 bits with 6 digits of precision. Eg

Objects., what are objects or simply define objects

what are objects or simply define objects

Give example of the do while loop, Normal 0 false false fal...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Padovan string, padovan string program 1 : package test.padovanstring; ...

padovan string program 1 : package test.padovanstring; public class PadovanString {     public int stringOccurrences(int n, String str){        if(n >= 40)     return -

Which one would you prefer - a macro or a function, Which one would you pre...

Which one would you prefer - a macro or a function? Actually it depends on the purpose of program! - In case of macros, corresponding code is inserted directly into your sou

Two dimension array- c program, 2-D Array- C program: Define a two dim...

2-D Array- C program: Define a two dimension array using c. void convert ( int a[10][10] , int[] , int , int); void main()   {   clrscr();   int a[10][10], b[10

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