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 .