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+.Dd January 15, 2017
+.Dt COMPRESSBOUND 3
+.Os
+.
+.Sh NAME
+.Nm compressBound
+.Nd compressed size upper bound
+.
+.Sh LIBRARY
+.Lb libz
+.
+.Sh SYNOPSIS
+.In zlib.h
+.Ft uLong
+.Fn compressBound "uLong sourceLen"
+.
+.Sh DESCRIPTION
+.Fn compressBound
+returns an upper bound on the compressed size after
+.Xr compress 3
+or
+.Xr compress2 3
+on
+.Fa sourceLen
+bytes.
+It would be used before a
+.Xr compress 3
+or
+.Xr compress2 3
+call to allocate the destination buffer.
+.
+.Sh SEE ALSO
+.Xr compress 3 ,
+.Xr deflateBound 3
+.
+.Sh HISTORY
+This manual page was converted from
+.In zlib.h
+to mdoc format by
+.An C. 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