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

Programs that perform the identical recursive algorithm, Goals For this ass...

Goals For this assignment you will write programs in C and LC-3 assembly code. Both programs will perform the identical recursive algorithm. The goals of this programming assignmen

Explain operators, Operators The variables, which are declared and expl...

Operators The variables, which are declared and explained, are the operands, which are operated upon by the operators. Operators specify what operations are to be performed on

Write a recursive function to generate anagrams, An anagram is a type of wo...

An anagram is a type of word play, the result of rearranging the letters of a word or phrase to produce a new word or phrase. For example the anagram of tea is tea, tae, eat, eta,

Char, how many bytes required to char

how many bytes required to char

FlipFlaps fltk project, The project is to design and write a C++11/FLTKgame...

The project is to design and write a C++11/FLTKgame program with a graphical user interface.The game is based on "pancake sorting," as described at http://en.wikipedia.org/wiki/P

Reverse a string - c ++ program, Reverse a string - C ++ program: Writ...

Reverse a string - C ++ program: Write a program in c to reverse a string. int main() {     Stack theStack;     String reverse("reverse");       cout

Answer, what is spanning tree? explain prims algorithm spanning tree?

what is spanning tree? explain prims algorithm spanning tree?

Padovan string, A Padovan string P(n) for a natural number n is defined as:...

A Padovan string P(n) for a natural number n is defined as: P(0) = ‘X’ P(1) = ‘Y’ P(2) = ‘Z’ P(n) = P(n-2) + P(n-3), n>2

Explain mixed mode expressions and implicit type conversions, Mixed Mode Ex...

Mixed Mode Expressions and Implicit type Conversions A mixed mode expression is one in which the operands are not of the similar type. In this case, the operands are converted

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