+ called before deflate(). If that first deflate() call is provided the
+ sourceLen input bytes, an output buffer allocated to the size returned by
+ deflateBound(), and the flush value Z_FINISH, then deflate() is guaranteed
+ to return Z_STREAM_END. Note that it is possible for the compressed size to
+ be larger than the value returned by deflateBound() if flush options other
+ than Z_FINISH or Z_NO_FLUSH are used.
+*/
+
+ZEXTERN int ZEXPORT deflatePending OF((z_streamp strm,
+ unsigned *pending,
+ int *bits));
+/*
+ deflatePending() returns the number of bytes and bits of output that have
+ been generated, but not yet provided in the available output. The bytes not
+ provided would be due to the available output space having being consumed.
+ The number of bits of output not provided are between 0 and 7, where they
+ await more bits to join them in order to fill out a full byte. If pending
+ or bits are Z_NULL, then those values are not set.
+
+ deflatePending returns Z_OK if success, or Z_STREAM_ERROR if the source
+ stream state was inconsistent.
+ */