From 482654692b90e96110356ee23a3a612a62fb4414 Mon Sep 17 00:00:00 2001
From: Curtis McEnroe <june@causal.agency>
Date: Sun, 11 Nov 2018 15:35:56 -0500
Subject: Separate out adler32_combine.3

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 mode change 120000 => 100644 adler32_combine.3

(limited to 'adler32_combine.3')

diff --git a/adler32_combine.3 b/adler32_combine.3
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-adler32.3
\ No newline at end of file
diff --git a/adler32_combine.3 b/adler32_combine.3
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+.Dd November 9, 2018
+.Dt ADLER32_COMBINE 3
+.Os
+.
+.Sh NAME
+.Nm adler32_combine
+.Nd combine Adler-32 checksums
+.
+.Sh LIBRARY
+.Lb libz
+.
+.Sh SYNOPSIS
+.In zlib.h
+.Ft uLong
+.Fn adler32_combine "uLong adler1" "uLong adler2" "z_off_t len2"
+.
+.Sh DESCRIPTION
+Combine two Adler-32 checksums into one.
+For two sequences of bytes,
+.Va seq1
+and
+.Va seq2
+with lengths
+.Va len1
+and
+.Va len2 ,
+Adler-32 checksums were calculated for each,
+.Va adler1
+and
+.Va adler2 .
+.Fn adler32_combine
+returns the Adler-32 checksum of
+.Va seq1
+and
+.Va seq2
+concatenated,
+requiring only
+.Fa adler1 ,
+.Fa adler2 ,
+and
+.Fa len2 .
+Note that the
+.Vt z_off_t
+type
+.Pq like Vt off_t
+is a signed integer.
+If
+.Fa len2
+is negative,
+the result has no meaning or utility.
+.
+.Sh SEE ALSO
+.Xr adler32 3
-- 
cgit 1.4.1