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.Dd November 8, 2018
.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
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