NAME
fputc, putc,
putchar, putw —
output a character or word to a
stream
SYNOPSIS
#include
<stdio.h>
int
fputc(int
c, FILE
*stream);
int
putc(int
c, FILE
*stream);
int
putchar(int
c);
int
putw(int
w, FILE
*stream);
DESCRIPTION
Thefputc()
function writes the character c (converted to an
``unsigned char'') to the output stream pointed to by
stream.
Putc()
acts essentially identically to fputc(), but is a
macro that expands in-line. It may evaluate stream
more than once, so arguments given to putc() should
not be expressions with potential side effects.
Putchar()
is identical to
putc()
with an output stream of
stdout.
The
putw()
function writes the specified int to the named output
stream.
RETURN VALUES
The functions, fputc(),
putc() and putchar() return
the character written. If an error occurs, the value
EOF is returned. The putw()
function returns 0 on success; EOF is returned if a
write error occurs, or if an attempt is made to write a read-only
stream.
SEE ALSO
STANDARDS
The functions fputc(),
putc(), and putchar(),
conform to ANSI X3.159-1989
(“ANSI C89”). A function
putw() function appeared in
Version 6 AT&T UNIX.
BUGS
The size and byte order of an int varies from
one machine to another, and putw() is not
recommended for portable applications.