https://stackoverflow.com › questions › 1782080

@LaurieStearn: In C, EOF is really just a macro that expands to a constant integer expression (typically defined in some header as something like: #define EOF (-1)) and is therefore typically 4 bytes wide. The EOF macro doesn't signal anything, since it is just a value.

https://stackoverflow.com › questions › 31155914

EOF is short for End of File. It's not an actual character, but more like a signal that indicates the end of input stream. Think about getchar(), it's used to get a character from stdin (the standard input).

https://thelinuxcode.com › eof-in-c-programming

It‘s a special value defined in C used to indicate the end of a file or stream has been reached during input operations. More specifically, EOF is defined as the integer constant -1 in C. For example: #include <stdio.h> int main() { printf("Value of EOF: %d\n", EOF); return 0; }

https://www.geeksforgeeks.org › eof-and-feof-in-c

EOF, getc () and feof () in C. In C/C++, getc () returns the End of File (EOF) when the end of the file is reached. getc () also returns EOF when it fails. So, only comparing the value returned by getc () with EOF is not sufficient to check for the actual end of the file.

https://www.codewithc.com › mastering-eof-in-c-a-comprehensive-guide

What is EOF in C? Alright, so EOF stands for ‘end of file.’. It’s like the period at the end of a sentence in a text file, indicating that there’s no more content to read. In C, EOF is represented by the EOF macro, which has a value of -1 (or FFFFFFFF in hexadecimal).

https://en.wikipedia.org › wiki › End-of-file

In computing, end-of-file (EOF) [1] is a condition in a computer operating system where no more data can be read from a data source. The data source is usually called a file or stream.

https://www.gyata.ai › c › c-language-eof

Understanding EOF in C Language. The EOF, or End-of-File, is a unique condition that arises when a program has reached the end of a file during operations like reading or writing. In the C language, EOF is represented by a macro and has a value of -1. It is defined in the header file .

https://faq.cprogramming.com › cgi-bin › smartfaq.cgi

EOF is a macro defined as an int with a negative value. It is normally returned by functions that perform read operations to denote either an error or end of input. Due to variable promotion rules (discussed in detail later), it is important to ensure you use an int to store the return code from these functions, even if the function appears to ...

https://www.gnu.org › s › libc › manual › html_node › EOF-and-Errors.html

This macro is an integer value that is returned by a number of narrow stream functions to indicate an end-of-file condition, or some other error situation. With the GNU C Library, EOF is -1. In other libraries, its value may be some other negative number. This symbol is declared in stdio.h.

https://www.delftstack.com › howto › c › end-of-file-character-c

When the end of the file is reached in C, the getc() function returns EOF. getc() will also return end-of-file (EOF) if it is unsuccessful. Therefore, it is not sufficient to only compare the value provided by getc() with EOF to determine whether or not the file has reached its end.