swab(3) — Справочная страница Linux

swab(3)                 Library Functions Manual                 swab(3)

НАЗВАНИЕ

       swab - swap adjacent bytes

БИБЛИОТЕКА

       Standard C library (libc, -lc)

СИНТАКСИС

       #define _XOPEN_SOURCE       /* See feature_test_macros(7) */
       #include <unistd.h>

       void swab(const void from[restrict .n], void to[restrict .n],
                 ssize_t n);

ОПИСАНИЕ

       The swab() function copies n bytes from the array pointed to by
       from to the array pointed to by to, exchanging adjacent even and
       odd bytes.  This function is used to exchange data between
       machines that have different low/high byte ordering.

       This function does nothing when n is negative.  When n is
       positive and odd, it handles n-1 bytes as above, and does
       something unspecified with the last byte.  (In other words, n
       should be even.)

ЗНАЧЕНИЕ, ВОЗВРАЩАЕМОЕ ФУНКЦИЕЙ

       The swab() function returns no value.

АТРИБУТЫ

       For an explanation of the terms used in this section, see
       attributes(7).
       ┌─────────────────────────────────────┬───────────────┬─────────┐
       │ Interface                           │ Attribute     │ Value   │
       ├─────────────────────────────────────┼───────────────┼─────────┤
       │ swab()                              │ Thread safety │ MT-Safe │
       └─────────────────────────────────────┴───────────────┴─────────┘

СТАНДАРТЫ

       POSIX.1-2008.

ИСТОРИЯ

       POSIX.1-2001, SVr4, 4.3BSD.

СМОТРИТЕ ТАКЖЕ

       bstring(3)

КОЛОФОН

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       user-space interface documentation) project.  Information about
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       man-pages@man7.org

Linux man-pages 6.9.1          2024-05-02                        swab(3)

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