putc man page on 4.4BSD

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PUTC(3)			 BSD Library Functions Manual		       PUTC(3)

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
     The fputc() 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 writ‐
     ten.  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
     ferror(3), fopen(3), getc(3), stdio(3)

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.

BSD				 June 4, 1993				   BSD
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