222     case Z_OK:  in zlib_compress_impl()
265     if (err == Z_OK) {  in zlib_compress_impl()
350     case Z_OK:  in zlib_decompress_impl()
378             case Z_OK:            /* fall through */  in zlib_decompress_impl()
405     if (err != Z_OK) {  in zlib_decompress_impl()
473     case Z_OK:  in zlib_compressobj_impl()
481             case Z_OK:  in zlib_compressobj_impl()
527     if (err != Z_OK) {  in set_inflate_zdict()
573     case Z_OK:  in zlib_decompressobj_impl()
760     int err = Z_OK;  in zlib_Decompress_decompress_impl()
802             case Z_OK:            /* fall through */  in zlib_Decompress_decompress_impl()
828     } else if (err != Z_OK && err != Z_BUF_ERROR) {  in zlib_Decompress_decompress_impl()
903         if (err != Z_OK) {  in zlib_Compress_flush_impl()
915     } else if (err != Z_OK && err != Z_BUF_ERROR) {  in zlib_Compress_flush_impl()
954     case Z_OK:  in zlib_Compress_copy_impl()
1009     case Z_OK:  in zlib_Decompress_copy_impl()
1090             case Z_OK:            /* fall through */  in zlib_Decompress_flush_impl()
1117         if (err != Z_OK) {  in zlib_Decompress_flush_impl()