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GETC(3)		       FreeBSD Library Functions Manual		       GETC(3)

NAME
     fgetc, getc, getchar, getw	-- get next character or word from input
     stream

SYNOPSIS
     #include <stdio.h>

     int
     fgetc(FILE	*stream);

     int
     getc(FILE *stream);

     int
     getchar(void);

     int
     getw(FILE *stream);

DESCRIPTION
     The fgetc() function obtains the next input character (if present)	from
     the stream	pointed	at by stream, or the next character pushed back	on the
     stream via	ungetc(3).

     The getc()	function acts essentially identically to fgetc(), but is a
     macro that	expands	in-line.

     The getchar() function is equivalent to getc() with the argument stdin.

     The getw()	function obtains the next int (if present) from	the stream
     pointed at	by stream.

RETURN VALUES
     If	successful, these routines return the next requested object from the
     stream.  If the stream is at end-of-file or a read	error occurs, the rou-
     tines return EOF.	The routines feof(3) and ferror(3) must	be used	to
     distinguish between end-of-file and error.	 If an error occurs, the
     global variable errno is set to indicate the error.  The end-of-file con-
     dition is remembered, even	on a terminal, and all subsequent attempts to
     read will return EOF until	the condition is cleared with clearerr(3).

SEE ALSO
     ferror(3),	fopen(3), fread(3), getwc(3), putc(3), ungetc(3)

STANDARDS
     The fgetc(), getc(), and getchar()	functions conform to ANSI X3.159-1989
     ("ANSI C89").

HISTORY
     The getc()	and getw() functions first appeared in Version 1 AT&T UNIX;
     getchar() in Version 2 AT&T UNIX; and fgetc() in Version 7	AT&T UNIX.

AUTHORS
     Dennis Ritchie originally implemented getc() and getw() in	PDP-11 assem-
     bler.

BUGS
     Since EOF is a valid integer value, feof(3) and ferror(3) must be used to
     check for failure after calling getw().

     Since the size and	byte order of an int may vary from one machine to an-
     other, getw() is not recommended for portable applications.

FreeBSD	13.0		       December	1, 2017			  FreeBSD 13.0

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | SEE ALSO | STANDARDS | HISTORY | AUTHORS | BUGS

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