putc(3p) - phpMan

PUTC(P)                                                                PUTC(P)



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 imple-
       mented 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 .



POSIX                                2003                              PUTC(P)

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