putc(3p) — Справочная страница Linux

PUTC(3P)                POSIX Programmer's Manual               PUTC(3P)

ПРОЛОГ

       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.

ИМЯ

       putc — put a byte on a stream

СИНТАКСИС

       #include <stdio.h>

       int putc(int c, FILE *stream);

ОПИСАНИЕ

       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.1‐2017 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.

ЗНАЧЕНИЕ, ВОЗВРАЩАЕМОЕ ФУНКЦИЕЙ

       Refer to fputc(3p).

ОШИБКИ

       Refer to fputc(3p).

       The following sections are informative.

ПРИМЕРЫ

       None.

ПРИМЕНЕНИЕ

       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.

ОБЪЯСНЕНИЕ

       None.

НАПРАВЛЕНИЯ РАЗВИТИЯ

       None.

СМОТРИТЕ ТАКЖЕ

       Section 2.5, Standard I/O Streams, fputc(3p)

       The Base Definitions volume of POSIX.1‐2017, stdio.h(0p)

АВТОРСКИЕ ПРАВА

       Portions of this text are reprinted and reproduced in electronic
       form from IEEE Std 1003.1-2017, Standard for Information
       Technology -- Portable Operating System Interface (POSIX), The
       Open Group Base Specifications Issue 7, 2018 Edition, Copyright
       (C) 2018 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 .

       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               2017                          PUTC(3P)

Страницы, которые ссылаются на эту страницу: stdio.h(0p), fputc(3p), fputs(3p), fwrite(3p), getc_unlocked(3p), putchar(3p), puts(3p), stdin(3p)