How putchar function is used within a c program, Computer Engineering

Assignment Help:

How putchar function is used within a C Program ?

The following program reads each character in the first line of input entered at the terminal's keyboard. It uses putchar to display, on the terminal's screen, each character from the line.

#include

int c;

main()

{

puts("Enter a line of input.");

while ( (c = getchar()) != '\n' ) /* Look for newline */

{

putchar(c);

}

putchar('\n');

}

putchar writes one character to the standard output file, stdout. But getchar

Reads and returns the next character from the standard input file, stdin.

Syntax

#include

int getchar(void);

The getchar macro reads the next character from the preopened file pointed to by stdin. The file pointed to by stdin is usually associated with the terminal's keyboard. If the file is at end- of-file, getchar sets the end-of-file indicator for stdin. If a read error occurs, the macro sets the error indicator associated with stdin. If the file is at end-of-file or a read error occurs, getcharsets the external variables errno and os_errno to the appropriate error code number.

The getchar macro returns an integer value representing the next character from stdin. If a read error occurs or the file is at end-of-file, getchar returns EOF.

 


Related Discussions:- How putchar function is used within a c program

Illustrate basic working of physical layer, Q. Illustrate basic working of ...

Q. Illustrate basic working of Physical layer? Physical layer: Physical layer is concerned with sending raw bits between source and destination nodes over a physical medium.

C program, find area uder the curve y=f(x) between x=a and x=b Posted Date...

find area uder the curve y=f(x) between x=a and x=b Posted Date: 9/1/2012 1:50:09 AM

What is wap, What is WAP? WAP is stands for Wireless Application Proto...

What is WAP? WAP is stands for Wireless Application Protocol. It is a global, open standard which gives mobile users access to Internet services by handled devices. Wireless A

Convert ascii code to its bcd equivalent, Convert ASCII code to its BCD equ...

Convert ASCII code to its BCD equivalent. This can be achieved by simply replacing bits in upper four bits of byte by four zeros. For illustration the ASCII '1' is 32h = 0010B. By

What is pure semiconductors, Q. What is Pure semiconductors? Pure semic...

Q. What is Pure semiconductors? Pure semiconductors, known as intrinsic semiconductors, have very few charge carriers and may hence be classified as almost insulators or very p

What is clipboard, Clipboard is a temporary storage location in Windows. Th...

Clipboard is a temporary storage location in Windows. The clipart will kept one piece of information at a time when it is manually added to the clipart or is copied there.

Fixed arithmetic pipelines, Fixed Arithmetic pipelines  We obtain the e...

Fixed Arithmetic pipelines  We obtain the example of multiplication of fixed numbers. The Two fixed-point numbers are added by the ALU using shift and add operations. This sequ

State the implementation of a security policy, State the implementation of ...

State the implementation of a security policy The implementation of a security policy should invariably cover all parameters of security such as physical access to the server,

Op code mnemonics in assembly language, Op code mnemonics: Instruction...

Op code mnemonics: Instructions  (statements)  in  assembly  language  are  usually  very  simple,  unlike  those that in  high-level languages. Usually, an opcode is a symbol

Describe the fundamental characteristics of antennas, Question 1: (a) ...

Question 1: (a) Describe the two fundamental characteristics of antennas explaining in detail how it affects the security of wireless networks. (b) What is a wireless cli

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