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

Cohesion and coupling, can i get a prepared ppt for this topic to present i...

can i get a prepared ppt for this topic to present it in a seminar??

What is a snooping cache, DNS cache snooping is not a term the author just ...

DNS cache snooping is not a term the author just made up, it is called and discussed by some notable DNS execution developers, and a few interested DNS administrators have prob

Grid security, i just want the experiment to be taken , on Grid Security......

i just want the experiment to be taken , on Grid Security........

Propositional logic - artificial intelligence, Propositional Logic - artifi...

Propositional Logic - artificial intelligence: This is a limited logic, which permit  us to write sentences about propositions - statements about the world - which can either b

Determine the negation of the statement, Determine the negation of the stat...

Determine the negation of the statement? "2 is even and -3 is negative"? Answer: 2 is odd or -3 is not negative.

What do you eman by processors hypercube, Q. What do you eman by Processors...

Q. What do you eman by Processors Hypercube? This is precise to in the hypercube. Every processor is portrayed by set of nodes of graph and different arcs are represented with

What is combinational circuits, Q. What is Combinational circuits? Comb...

Q. What is Combinational circuits? Combinational circuits are interconnected circuits of gates according to definite rules to generate an output relying on its input value. A w

How do you make an append query, Append query can be used if you would like...

Append query can be used if you would like to add new rows of data to an already active table. The process of making an append query follows these steps they are. ? Basic step

What is structured programming, What is structured programming? Structu...

What is structured programming? Structured Programming: means the collection of principles and practices that are directed toward developing right programs which are simple to

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