.\" Copyright (c) 1999 G. Adam Stanislav
.\" All rights reserved.
.\"
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.\"	libutf-8 v.1
.\"
.Dd April 1, 1999
.Dt FPUTU8 3
.Os
.Sh NAME
.Nm fputu8
.Nd utf-8 library function manual page
.Sh SYNOPSIS
.Fd #include <utf-8.h>
.Ft int
.Fn fputu8 "unsigned int c" "FILE *output"
.Ft int
.Fn utf8fputc "unsigned int c" "FILE *output"
.Ft int
.Fn utf8putc "unsigned int c" "FILE *output"
.Ft int
.Fn utf8putchar "unsigned int c"
.Sh DESCRIPTION
The
.Fn fputu8
function of utf-8 library converts a UTC-4 (31-bit Unicode) integer to one or more bytes
representing its UTF-8 value, and writes the result to a file.
.Pp
.Fn utf8fputc
and
.Fn utf8putc
are macros which simply give
.Fn fputu8
a name that may be more convenient to remember. They are defined in
.Aq Pa utf-8.h .
.Pp
The
.Fn fputu8
function and the macros take two arguments:
.Fa c ,
the UTC-4 code, and
.Fa input ,
which can be any open file.
.Pp
The
.Fn utf8putchar
macro sends output to stdout.
.Sh RETURN VALUES
.Fn fputu8
returns 
.Fa 0 
on success;
.Fa EOF 
if 
.Fa output
is NULL or cannot be written to; 
.Fa 1 
if
.Fa c
is not a valid UTC-4 code (i.e., its high bit is set).
.Sh SEE ALSO
.Xr libutf-8 3 ,
.Xr fgetu8 3 ,
.Xr sgetu8 3 ,
.Xr sputu8 3
.Rs
.%A F. Yergeau
.%T UTF-8, a transformation format of Unicode and ISO 10646
.%O RFC2044
.Re
.Rs
.%A D. Goldsmith, M. Davis
.%T Using Unicode with MIME
.%O RFC1641
.Re
.Sh STANDARDS
ISO 10646-1: 1993 (``Unicode''), RFC 2044: 1996 (``UTF-8''),
.St -ansiC .
.Sh DIAGNOSTICS
You should always check the 
.Sx RETURN VALUES .
.Sh AUTHORS
This
manual page was written by
.An G. Adam Stanislav Aq adam@whizkidtech.net .
.Sh BUGS
None known.