From a3e8a3d6c00072a14a681d3bd93908d452a91ab8 Mon Sep 17 00:00:00 2001
From: June McEnroe <june@causal.agency>
Date: Thu, 8 Nov 2018 21:40:50 -0500
Subject: Convert zlib.h comments to mdoc

---
 adler32.3 | 65 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 65 insertions(+)
 create mode 100644 adler32.3

(limited to 'adler32.3')

diff --git a/adler32.3 b/adler32.3
new file mode 100644
index 00000000..c58a34e7
--- /dev/null
+++ b/adler32.3
@@ -0,0 +1,65 @@
+.Dd January 15, 2017
+.Dt ADLER32 3
+.Os
+.
+.Sh NAME
+.Nm adler32 ,
+.Nm adler32_z
+.Nd update Adler-32 checksum
+.
+.Sh LIBRARY
+.Lb libz
+.
+.Sh SYNOPSIS
+.In zlib.h
+.Ft uLong
+.Fn adler32 "uLong adler" "const Bytef *buf" "uInt len"
+.Ft uLong
+.Fn adler32_z "uLong adler" "const Bytef *buf" "z_size_t len"
+.
+.Sh DESCRIPTION
+Update a running Adler-32 checksum with the bytes
+.Fa "buf[0..len-1]"
+and return the updated checksum.
+If
+.Fa buf
+is
+.Dv Z_NULL ,
+this function returns
+the required initial value for the checksum.
+.
+.Pp
+An Adler-32 checksum is almost as reliable as a CRC-32
+but can be computed much faster.
+.
+.Pp
+.Fn adler32_z
+is the same as
+.Fn adler32 ,
+but with a
+.Vt size_t
+length.
+.
+.Sh EXAMPLES
+.Bd -literal -offset indent
+uLong adler = adler32(0L, Z_NULL, 0);
+
+while (read_buffer(buffer, length) != EOF) {
+	adler = adler32(adler, buffer, length);
+}
+if (adler != original_adler) error();
+.Ed
+.
+.Sh SEE ALSO
+.Xr adler32_combine 3 ,
+.Xr crc32 3
+.
+.Sh HISTORY
+This manual page was converted from
+.In zlib.h
+to mdoc format by
+.An June McEnroe Aq Mt june@causal.agency .
+.
+.Sh AUTHORS
+.An Jean-loup Gailly Aq Mt jloup@gzip.org
+.An Mark Adler Aq Mt madler@alumni.caltech.edu
-- 
cgit 1.4.1