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void swab(from, to, nbytes) char *from, *to;
swab() copies nbytes bytes pointed to by from to the position pointed to by to, exchanging adjacent even and odd bytes. It is useful for carrying binary data between high-ender machines (IBM 360's, MC68000's, etc) and low-end machines (such as Sun386i systems).
nbytes should be even and positive. If nbytes is odd and positive, swab() uses nbytes - 1 instead. If nbytes is negative, swab() does nothing.
The from and to addresses should not overlap in portable programs.
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Created by unroff & hp-tools. © somebody (See intro for details). All Rights Reserved. Last modified 11/5/97