4.4BSD/usr/share/man/cat3/swab.0

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SWAB(3)                     BSD Programmer's Manual                    SWAB(3)

NNAAMMEE
     sswwaabb - swap adjacent bytes

SSYYNNOOPPSSIISS
     ##iinncclluuddee <<ssttrriinngg..hh>>

     _v_o_i_d
     sswwaabb(_c_o_n_s_t _v_o_i_d _*_s_r_c, _v_o_i_d _*_d_s_t, _s_i_z_e___t _l_e_n);

DDEESSCCRRIIPPTTIIOONN
     The function sswwaabb() copies _l_e_n bytes from the location referenced by _s_r_c
     to the location referenced by _d_s_t, swapping adjacent bytes.

     The argument _l_e_n must be even number.

SSEEEE AALLSSOO
     bzero(3),  memset(3)

HHIISSTTOORRYY
     A sswwaabb() function appeared in Version 7 AT&T UNIX.

4.4BSD                           June 4, 1993                                1