NAME

       putc - put a byte on a stream

SYNOPSIS

       #include <stdio.h>

       int putc(int c, FILE *stream);

DESCRIPTION

       The  putc()  function  shall be equivalent to fputc(), except that if it is implemented as a macro it may
       evaluate stream more than once, so the argument should never be an expression with side effects.

RETURN VALUE

       Refer to fputc() .

ERRORS

       Refer to fputc() .

       The following sections are informative.

EXAMPLES

       None.

APPLICATION USAGE

       Since it may be implemented as a macro, putc() may treat a stream argument with side effects incorrectly.
       In particular, putc(c,*f++) does not necessarily work correctly. Therefore, use of this function  is  not
       recommended in such situations; fputc() should be used instead.

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

       fputc() , the Base Definitions volume of IEEE Std 1003.1-2001, <stdio.h>

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition,
       Standard  for  Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base
       Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers,
       Inc and The Open Group. In the event of any discrepancy between this version and the  original  IEEE  and
       The  Open  Group  Standard,  the  original  IEEE and The Open Group Standard is the referee document. The
       original Standard can be obtained online at http://www.opengroup.org/unix/online.html .

IEEE/The Open Group                                   2003                                               PUTC(P)