Linux cli command swab

➡ A Linux man page (short for manual page) is a form of software documentation found on Linux and Unix-like operating systems. This man-page explains the command swab and provides detailed information about the command swab, system calls, library functions, and other aspects of the system, including usage, options, and examples of _. You can access this man page by typing man followed by the swab.

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NAME 🖥️ swab 🖥️

swap adjacent bytes

LIBRARY

Standard C library (libc, -lc)

SYNOPSIS

#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);

DESCRIPTION

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.)

RETURN VALUE

The swab() function returns no value.

ATTRIBUTES

For an explanation of the terms used in this section, see attributes(7).

InterfaceAttributeValue

swab()

Thread safetyMT-Safe

STANDARDS

POSIX.1-2008.

HISTORY

POSIX.1-2001, SVr4, 4.3BSD.

SEE ALSO

bstring(3)

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