How to end input with eof in C language

How to end input using EOF in C? Contains the header file. Use the scanf() or getchar() function to read the input. These functions return EOF when the user enters EOF.

How to end input using EOF in C

In C language, EOF (end of file) is a special constant that indicates the end of the input stream. It is usually used to determine when to stop reading when user input is read.

How to use

To end input using EOF, follow these steps:

• Include the <stdio.h></stdio.h> header file in the program.
• Use scanf() or getchar() functions to read the input.
• These functions return EOF when the user enters EOF (usually pressing Ctrl Z or Ctrl D, depending on the operating system).

Sample code

The following sample code demonstrates how to end input using EOF:

 <code class="c">#include <stdio.h> int main() { char input; printf("Enter characters, end with EOF (Ctrl Z/Ctrl D):\n"); while ((input = getchar()) != EOF) { printf("%c", input); } return 0; }</stdio.h></code>

illustrate

• getchar() function is used to read a single character.
• The while loop will continue to read characters until the user enters EOF.
• In the loop, print the read characters using the printf() function.

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