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swab(3)
NAME
  swab - Swaps bytes

LIBRARY
  Standard C Library (libc.so, libc.a)

SYNOPSIS
  #include <unistd.h>

  void swab(
	  const void *src,
	  void *dest,
	  ssize_t nbytes);

  The following definition of the swab() function does not conform to current
  standards and is supported only for System V compatibility:

  void swab(
	  const char *from,
	  char *to,
	  int nbytes);

STANDARDS
  Interfaces documented on this reference page conform to industry standards
  as follows:

  swab():  XPG4, XPG4-UNIX

  Refer to the standards(5) reference page for more information about
  industry standards and associated tags.

PARAMETERS
  src	    Points to the location of the string to copy.

  dest	    Points to the location to which the resulting string is copied.

  nbytes    Specifies the number of bytes to be copied.	 The nbytes parameter
	    should have an even value.	When the nbytes parameter is odd, the
	    swab() function uses nbytes-1 instead.  For the System V version
	    of the swab() function, nbytes must also be non-negative.  If
	    nbytes is negative, nothing is done.

DESCRIPTION
  The swab() function copies the number of bytes specified by the nbytes
  parameter from the location pointed to by the src parameter to the array
  pointed to by the dest parameter, exchanging adjacent bytes. If copying
  takes place between objects that overlap, the behavior is undefined.

RELATED INFORMATION
  Standards: standards(5)

Index for Section 3

Alphabetical listing for S

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