EOF(3) Linux Programmer's Manual EOF(3) NAME EOF - end of file/error indicator SYNOPSIS #include <stdio.h> #define EOF (-1) /* or otherwise */ DESCRIPTION EOF is a negative int constant returned by various C functions to indi- cate either end of file or error. NOTES Although EOF is traditionally defined to be -1, this is not actually guaranteed either by standard C or POSIX. CONFORMING TO ISO/IEC 9899 SEE ALSO ferror(3), feof(3) 2005-02-03 EOF(3)