swab - swap adjacent bytes

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

       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.)

       POSIX.1-2001, SVr4, 4.3BSD.

       Standard C library (libc, -lc)

       swab - swap adjacent bytes

       The swab() function returns no value.

bstring(3)

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

       POSIX.1-2008.

#define_XOPEN_SOURCE       /* See feature_test_macros(7) */
       #include<unistd.h>voidswab(constvoidfrom[restrict.n],voidto[restrict.n],ssize_tn);