dist/zlib/zlib.h

94     uInt     avail_out; /* remaining free space at next_out */
137    to zero.  It must update next_out and avail_out when avail_out has dropped
267   - Generate more output starting at next_out and update next_out and avail_out
275   output, and updating avail_in or avail_out accordingly; avail_out should
277   output when it wants, for example when the output buffer is full (avail_out
279   zero avail_out, it must be called again after making room in the output
321     If deflate returns with avail_out == 0, this function must be called again
323   avail_out), until the flush is complete (deflate returns with non-zero
324   avail_out).  In the case of a Z_FULL_FLUSH or Z_SYNC_FLUSH, make sure that
325   avail_out is greater than six to avoid repeated flush markers due to
326   avail_out == 0 on return.
332   avail_out) but no more input data, until it returns with Z_STREAM_END or an
338   call, avail_out must be at least the value returned by deflateBound (see
359   avail_in or avail_out was zero).  Note that Z_BUF_ERROR is not fatal, and
396    next_out, and avail_out are unused and unchanged.  The current
418   - Generate more output starting at next_out and update next_out and avail_out
429   when the output buffer is full (avail_out == 0), or after each call of
430   inflate().  If inflate returns Z_OK and with zero avail_out, it must be
468   avail_out must be large enough to hold all of the uncompressed data for the
730    request until strm.avail_out is not zero, before calling deflateParams().
883    next_out and avail_out are unused and unchanged.) The current implementation