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NAME

       EOF - end of file or error indicator

LIBRARY

       Standard C library (libc)

SYNOPSIS

       #include <stdio.h>

       #define EOF  /* ... */

DESCRIPTION

       EOF  represents the end of an input file, or an error indication.  It is a negative value,
       of type int.

       EOF is not a character (it can't be represented  by  unsigned  char).   It  is  instead  a
       sentinel value outside of the valid range for valid characters.

CONFORMING TO

       C99 and later; POSIX.1-2001 and later.

CAVEATS

       Programs  can't  pass this value to an output function to "write" the end of a file.  That
       would likely result in undefined behavior.  Instead, closing the writing  stream  or  file
       descriptor that refers to such file is the way to signal the end of that file.

SEE ALSO

       feof(3), fgetc(3)