Add 'doc/zlib/' from commit 'e1ebbcf0ed43f21dd504f1f109e5d12b6bc99460'

git-subtree-dir: doc/zlib
git-subtree-mainline: bc52b7578b0ebfc228977342ac7bffc999212197
git-subtree-split: e1ebbcf0ed43f21dd504f1f109e5d12b6bc99460

1 files changed, 63 insertions, 0 deletions

diff --git a/doc/zlib/gzeof.3 b/doc/zlib/gzeof.3
new file mode 100644
index 00000000..ba823aa6
--- /dev/null
+++ b/doc/zlib/gzeof.3
@@ -0,0 +1,63 @@
+.Dd January 15, 2017
+.Dt GZEOF 3
+.Os
+.
+.Sh NAME
+.Nm gzeof
+.Nd check end-of-file indicator
+.
+.Sh LIBRARY
+.Lb libz
+.
+.Sh SYNOPSIS
+.In zlib.h
+.Ft int
+.Fn gzeof "gzFile file"
+.
+.Sh DESCRIPTION
+Returns true (1)
+if the end-of-file indicator
+has been set while reading,
+false (0) otherwise.
+Note that the end-of-file indicator
+is set only if the read
+tried to go past the end of the input,
+but came up short.
+Therefore,
+just like
+.Xr feof 3 ,
+.Fn gzeof
+may return false
+even if there is no more data to read,
+in the event that the last read request
+was for the exact number of bytes
+remaining in the input file.
+This will happen if the input file size
+is an exact multiple of the buffer size.
+.
+.Pp
+If
+.Fn gzeof
+returns true,
+then the read functions
+will return no more data,
+unless the end-of-file indicator
+is reset by
+.Xr gzclearerr 3
+and the input file
+has grown since the previous
+end of file was detected.
+.
+.Sh SEE ALSO
+.Xr gzerror 3 ,
+.Xr gzread 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