Note explicitly that memcpy does not guarantee good behavior on overlap.
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@ -34,7 +34,7 @@
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.\" SUCH DAMAGE.
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.\"
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.\" from: @(#)memcpy.3 8.1 (Berkeley) 6/4/93
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.\" $NetBSD: memcpy.3,v 1.7 2001/07/06 15:11:18 tv Exp $
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.\" $NetBSD: memcpy.3,v 1.8 2001/07/07 04:53:52 perry Exp $
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.\"
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.Dd June 4, 1993
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.Dt MEMCPY 3
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@ -58,6 +58,9 @@ bytes from string
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.Fa src
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to string
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.Fa dst .
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The arguments must not overlap -- behavior if the arguments overlap is
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undefined. To copy byte strings that overlap, use
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.Xr memmove 3 .
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.Sh RETURN VALUES
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The
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.Fn memcpy
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