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

Subsequent step in karnaugh map, The subsequent step in Karnaugh map is to ...

The subsequent step in Karnaugh map is to map truth table in the map. Mapping is done by putting a 1 in respective square belonging to 1 value in truth table. This mapped map is us

Dbms, Find a 3NF decomposition of the following relation scheme: University...

Find a 3NF decomposition of the following relation scheme: University (Faculty, Dean, Department, Chair, Professor, Rank, Student}. The University relation satisfies the following

Quick sort , Write Quick sort non recursive program

Write Quick sort non recursive program

Define external variable declaration, Summarize the distinction between an ...

Summarize the distinction between an external variable definition and an external variable declaration. When we have ''declared'' a variable, we have meant that we have told th

C program, a c program to implement multiple stack in a single array

a c program to implement multiple stack in a single array

Analysis of sort bitonic, Analysis of Sort_Bitonic(X) The bitonic sorti...

Analysis of Sort_Bitonic(X) The bitonic sorting network needs log n number of phases for performing task of sorting the numbers. The first n-1 phases of circuit can sort two n/

What is supply chain management, What is Supply Chain Management? Sup...

What is Supply Chain Management? Supply Chain Management: Supply Chain Management involves developing the performance of an organization’s supply chain from its supplier

Engineering applications, Engineering Applications A few of the enginee...

Engineering Applications A few of the engineering applications are: Airflow circulation over aircraft machinery, Simulations of simulated ecosystems. Airflow c

Set up to use parallel virtual machine, Q. Set up to Use parallel virtual m...

Q. Set up to Use parallel virtual machine? PVM employs two environment variables when starting and running. Each and every PVM user needs to set these two variables to employ P

Pipeline processing-parallel computer architecture , Pipeline Processing ...

Pipeline Processing Pipelining is a process to realize, overlapped parallelism in the proposed answer of a problem, on a digital computer in an economical way. To understand th

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