|
PROLOG | NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | EXAMPLES | APPLICATION USAGE | RATIONALE | FUTURE DIRECTIONS | SEE ALSO | COPYRIGHT |
PUTC(3P) POSIX Programmer's Manual PUTC(3P)
This manual page is part of the POSIX Programmer's Manual. The Linux
implementation of this interface may differ (consult the
corresponding Linux manual page for details of Linux behavior), or
the interface may not be implemented on Linux.
putc — put a byte on a stream
#include <stdio.h>
int putc(int c, FILE *stream);
The functionality described on this reference page is aligned with
the ISO C standard. Any conflict between the requirements described
here and the ISO C standard is unintentional. This volume of
POSIX.1‐2008 defers to the ISO C standard.
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.
Refer to fputc(3p).
Refer to fputc(3p).
The following sections are informative.
None.
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.
None.
None.
Section 2.5, Standard I/O Streams, fputc(3p)
The Base Definitions volume of POSIX.1‐2008, stdio.h(0p)
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1, 2013 Edition, Standard for Information
Technology -- Portable Operating System Interface (POSIX), The Open
Group Base Specifications Issue 7, Copyright (C) 2013 by the
Institute of Electrical and Electronics Engineers, Inc and The Open
Group. (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1
applied.) 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.unix.org/online.html .
Any typographical or formatting errors that appear in this page are
most likely to have been introduced during the conversion of the
source files to man page format. To report such errors, see
https://www.kernel.org/doc/man-pages/reporting_bugs.html .
IEEE/The Open Group 2013 PUTC(3P)
Pages that refer to this page: stdio.h(0p), fputc(3p), fputs(3p), fwrite(3p), getc_unlocked(3p), putchar(3p), puts(3p), stdin(3p)