Re: [release] Boost 1.88.0

--===============6203775031008658783==
Content-Type: multipart/alternative; boundary="000000000000a5053806328522bb"

--000000000000a5053806328522bb
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

Not an author, so these are just my best guesses

On Fri, Apr 11, 2025 at 8:13=E2=80=AFPM Marek K=C3=BCthe via Boost-users <
[email protected]> wrote:

> Hello,
>
> I have two questions about the Boost.Hash2 library:
> 1. Which xxHash algorithm is implemented exactly (I somehow couldn't see
> this in the documentation). As far as I know there are four: XXH32,
> XXH64, XXH3_64bits and XXH3_128bits [1]. Boost.Hash2 implements
> xxhash_32 and xxhash_64, but is this the old xxHash version (XXH32,
> XXH64) or the new xxHash version 3 (XXH3_64bits, XXH3_128bits)?
>

https://github.com/boostorg/hash2/blob/14a374ea904cf7a58cfef65e11d1de067fe0=
dd82/test/xxhash_2.cpp#L44C59-L44C80
matching
https://github.com/Cyan4973/xxHash/blob/dd11140c2dc5d53a3c0a949d67af7f40f54=
6878e/cli/xsum_sanity_check.c#L113
Seems to suggest that 64bit hash is XXH64.



> 2. Is there a specific reason why the old cstdio library and not
> iostream/fstream from C++ is used in the examples [2]?
>

I think there is no reason.

--000000000000a5053806328522bb
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div>Not an author, so these are just my best guesses</div=
><br><div class=3D"gmail_quote gmail_quote_container"><div dir=3D"ltr" clas=
s=3D"gmail_attr">On Fri, Apr 11, 2025 at 8:13=E2=80=AFPM Marek K=C3=BCthe v=
ia Boost-users &lt;<a href=3D"mailto:[email protected]">boost-use=
[email protected]</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote=
" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);=
padding-left:1ex">Hello,<br>
<br>
I have two questions about the Boost.Hash2 library:<br>
1. Which xxHash algorithm is implemented exactly (I somehow couldn&#39;t se=
e<br>
this in the documentation). As far as I know there are four: XXH32,<br>
XXH64, XXH3_64bits and XXH3_128bits [1]. Boost.Hash2 implements<br>
xxhash_32 and xxhash_64, but is this the old xxHash version (XXH32,<br>
XXH64) or the new xxHash version 3 (XXH3_64bits, XXH3_128bits)?<br></blockq=
uote><div>=C2=A0</div><div><a href=3D"https://github.com/boostorg/hash2/blo=
b/14a374ea904cf7a58cfef65e11d1de067fe0dd82/test/xxhash_2.cpp#L44C59-L44C80"=
>https://github.com/boostorg/hash2/blob/14a374ea904cf7a58cfef65e11d1de067fe=
0dd82/test/xxhash_2.cpp#L44C59-L44C80</a></div><div>matching=C2=A0</div><di=
v><a href=3D"https://github.com/Cyan4973/xxHash/blob/dd11140c2dc5d53a3c0a94=
9d67af7f40f546878e/cli/xsum_sanity_check.c#L113">https://github.com/Cyan497=
3/xxHash/blob/dd11140c2dc5d53a3c0a949d67af7f40f546878e/cli/xsum_sanity_chec=
k.c#L113</a></div><div>Seems to suggest that 64bit hash is=C2=A0XXH64.</div=
><div><br></div><div>=C2=A0</div><blockquote class=3D"gmail_quote" style=3D=
"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-le=
ft:1ex">
2. Is there a specific reason why the old cstdio library and not<br>
iostream/fstream from C++ is used in the examples [2]?<br></blockquote><div=
><br></div><div>I think there is no reason.</div><div>=C2=A0</div></div></d=
iv>

--000000000000a5053806328522bb--

--===============6203775031008658783==
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

_______________________________________________
Boost-users mailing list
[email protected]
https://lists.boost.org/mailman/listinfo.cgi/boost-users

--===============6203775031008658783==--