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

Determine the example of timescale, Determine the Example of timescale ...

Determine the Example of timescale 'timescale 10ns / 1ps Indicates delays are in 10 nanosecond units with 3 decimal points of precision (1 ps is 1/1000ns which is .001 ns).

Hashing collision resolution techniques, Hashing collision resolution techn...

Hashing collision resolution techniques are a) Chaining, b) Bucket addressing

Find the largest and the smallest array values, Q. Find the Largest and the...

Q. Find the Largest and the Smallest Array Values? Write down a program to find the largest as well as the smallest numbers from a given array. This program uses JGE (jump grea

Bilinear interpolated images , Transfer  Functions Change the last bili...

Transfer  Functions Change the last bilinear interpolated images and the original images into the frequency domain using the FFT.  Try to measure the magnitude transfer functio

Critical capabilities for superior firm performance, What are the critical ...

What are the critical capabilities for superior firm performance in e-commerce? Three firm capabilities which are critical for superior firm performance within e-commerce are:

Decision tree learning for cancer diagnosis, Assignment 1: Decision tree le...

Assignment 1: Decision tree learning for cancer diagnosis In this mini-project, you will implement a decision-tree algorithm and apply it to breast cancer diagnosis. For each p

What is segment - assembler directives, What is SEGMENT - Assembler directi...

What is SEGMENT - Assembler directives SEGMENT:  This directive defines to assembler the start of a segment with name segment-name.  Segment name must be unique and follows the

Find the shortest path, The following is the required interface for the mou...

The following is the required interface for the mouse and cheese problem. Your program is required to read its input from a file named 'maze.txt' In the maze.txt

State the difference between following, Q. State the difference between fo...

Q. State the difference between following. i. RAM and ROM ii. SRAM and DRAM iii. Dynamic and static MOS memories

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