When exploring fileno c, it's essential to consider various aspects and implications. fileno (3) — Linux manual page - man7.org. The function fileno () examines the argument stream and returns the integer file descriptor used to implement this stream. The file descriptor is still owned by stream and will be closed when fclose (3) is called. _fileno | Microsoft Learn. Similarly, aPI reference for _fileno; which gets the file descriptor associated with a stream.
fileno (3): check/reset stream status - Linux man page. fileno - Perldoc Browser. On a system with dirfd (3) or similar, fileno on a directory handle returns the underlying file descriptor associated with the handle; on systems with no such support, it returns the undefined value, and sets $!
Python File fileno () Method - W3Schools. Definition and Usage The fileno() method returns the file descriptor of the stream, as a number. An error will occur if the operator system does not use a file descriptor. Linux Howtos: manpages: fileno (3). Additionally, for nonlocking counterparts, see unlocked_stdio (3).
ERRORS These functions should not fail and do not set the external variable errno. (However, in case fileno () detects that its argument is not a valid stream, it must return -1 and set errno to EBADF.) Moreover, upon successful completion, fileno () shall return the integer value of the file descriptor associated with stream. Otherwise, the value -1 shall be returned and errno set to indicate the error.
fileno (3) — Arch manual pages. fileno(): _POSIX_C_SOURCE DESCRIPTION The function clearerr() clears the end-of-file and error indicators for the stream pointed to by stream. The function feof() tests the end-of-file indicator for the stream pointed to by stream, returning nonzero if it is set. The end-of-file indicator can be cleared only by the function clearerr().
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