PUTC
Section: POSIX Programmer's Manual (P)
Updated: 2003
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 .
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- ERRORS
-
- EXAMPLES
-
- APPLICATION USAGE
-
- RATIONALE
-
- FUTURE DIRECTIONS
-
- SEE ALSO
-
- COPYRIGHT
-
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