build.zig                                    |    3 +
 lib/std/compress.zig                         |    2 +
 lib/std/compress/testdata/rfc8478.txt        | 3027 ++++++++++++++++++++++++++++++++
 lib/std/compress/testdata/rfc8478.txt.zst.19 |  Bin 0 -> 22211 bytes
 lib/std/compress/testdata/rfc8478.txt.zst.3  |  Bin 0 -> 25639 bytes
 lib/std/compress/zstandard.zig               |   22 +
 lib/std/compress/zstandard/decompress.zig    | 1249 +++++++++++++
 lib/std/compress/zstandard/types.zig         |  394 +++++
 8 files changed, 4697 insertions(+)