Or live with the warnings.  Or cast his sizes to _int64, if the warnings are 
critical.

From: dev@arrow.apache.org At: 07/22/22 14:06:34 UTC-4:00To:  Arkadiy Vertleyb 
(BLOOMBERG/ 120 PARK ) ,  dev@arrow.apache.org
Subject: Re: Help needed with PR #13659: Fixing build/unit test issues in 
msvc/win32

The problem with (2) is that a library user can only work around it by
suppressing warnings with pragmas when including Arrow headers.

This is somewhat unfriendly from a user perspective.

On Fri., Jul. 22, 2022, 08:11 Arkadiy Vertleyb (BLOOMBERG/ 120 PARK), <
avertl...@bloomberg.net> wrote:

> This is what I would do:
>
> 1) Suppress warnings in cmake input file for this particular platform.
> This will let the user build the arrow libs.
>
> 2) Let those users who care about 32 bits worry about the warnings in the
> headers.
>
> Regards,
> Arkadiy
>
> From: dev@arrow.apache.org At: 07/22/22 10:18:09 UTC-4:00To:
> dev@arrow.apache.org
> Subject: Re: Help needed with PR #13659: Fixing build/unit test issues in
> msvc/win32
>
>
> Ah, that's a good point. Then we should probably use explicit casts.
>
>
> Le 22/07/2022 à 15:58, James Duong a écrit :
> > Seems reasonable to suppress this warning on this single platform.
> However
> > if we do this using a compiler option, we may hide warnings in public
> > headers from the build. This isn't great since library users may have
> > policies that disallow warnings.
> >
> > On Fri., Jul. 22, 2022, 05:47 Antoine Pitrou, <anto...@python.org>
> wrote:
> >
> >>
> >> We could perhaps suppress the integer downcast warnings, but only on
> >> 32-bit Windows (not 64-bit, not other platforms).
> >>
> >> Regards
> >>
> >> Antoine.
> >>
> >>
> >> Le 22/07/2022 à 14:42, Arkadiy Vertleyb (BLOOMBERG/ 120 PARK) a écrit :
> >>> Hi James.
> >>>
> >>> I don't have strong feelings about whose PR is used and how exactly the
> >> issue is fixed.  All I care about at this point is working (and
> maintained)
> >> MSVC 32 bit version.  I need this for my project at work.
> >>>
> >>> If you feel that your PR will solve this issue, and is close to being
> >> approved, please let me know and I will stop worrying about this.
> >>>
> >>> If you PR is not being approved any time soon, I will proceed with
> mine,
> >> and you can add your changes on top of it.  Should not be a big deal,
> since
> >> I only make a few small changes.
> >>>
> >>> Please let me know how you think we should proceed with this.
> >>>
> >>> Thanks,
> >>> Arkadiy
> >>>
> >>> From: dev@arrow.apache.org At: 07/21/22 18:29:33 UTC-4:00To:  Arkadiy
> >> Vertleyb (BLOOMBERG/ 120 PARK ) ,  dev@arrow.apache.org
> >>> Subject: Re: Help needed with PR #13659: Fixing build/unit test issues
> >> in msvc/win32
> >>>
> >>> Feedback I got here was to use static_cast:
> >>> https://github.com/apache/arrow/pull/13532#issuecomment-1177488433
> >>>
> >>> I'm indifferent as to whether we want to do the static_casts or just
> >>> suppress the warning as you've done.
> >>>
> >>> Your PR isn't building the 32-bit build in CI btw. It fails finding
> >> OpenSSL:
> >>>
> >>
>
> 
https://github.com/apache/arrow/runs/7432759888?check_suite_focus=true#step:7:20
> >>> 1
> >>>
> >>> I've fixed this in the changes to the github workflow in my PR.
> >>>
> >>>
> >>> On Thu, Jul 21, 2022 at 12:47 PM Arkadiy Vertleyb (BLOOMBERG/ 120
> PARK) <
> >>> avertl...@bloomberg.net> wrote:
> >>>
> >>>> Hi James.
> >>>>
> >>>> My PR makes the compiler ignore the warnings.
> >>>>
> >>>> As far as I understand, this issue cannot be consistently resolved
> >> within
> >>>> the Google paradigm arrow follows on this subject.  The google
> paradigm
> >>>> requires to treat all the sizes as signed 64 bit integers, regardless
> of
> >>>> the architecture.  This paradigm is obviously at odds with the
> standard
> >> C++
> >>>> paradigm.
> >>>>
> >>>> Changing of the paradigm is obviously not anything I want to propose
> at
> >>>> this point, hence I don't see any other way as to just switch off the
> >>>> warnings.
> >>>>
> >>>> Thanks,
> >>>> Arkadiy
> >>>>
> >>>>
> >>>> From: dev@arrow.apache.org At: 07/21/22 13:59:51 UTC-4:00To:
> >>>> dev@arrow.apache.org
> >>>> Cc:  Arkadiy Vertleyb (BLOOMBERG/ 120 PARK )
> >>>> Subject: Re: Help needed with PR #13659: Fixing build/unit test issues
> >> in
> >>>> msvc/win32
> >>>>
> >>>> Hi Arkadiy,
> >>>>
> >>>> I've been working on a PR for fixing 32-bit Visual Studio here which
> has
> >>>> some of the same changes.
> >>>> It also enables the 32-bit VS build in CI, which fails due to a ton of
> >>>> integer implicit cast warnings:
> >>>> https://github.com/apache/arrow/pull/13532
> >>>>
> >>>> Most of this commit is fixing 32-bit cast errors, along with a few
> >> changes
> >>>> to call bit_util::PopCount instead of ARROW_POPCOUNT64()
> >>>>
> >>>> On Thu, Jul 21, 2022 at 7:22 AM Raul Cumplido Dominguez
> >>>> <r...@voltrondata.com.invalid> wrote:
> >>>>
> >>>>> Yes, issues 1-3 are not related to your PR.
> >>>>>
> >>>>> On Thu, Jul 21, 2022 at 4:04 PM Arkadiy Vertleyb (BLOOMBERG/ 120
> PARK)
> >> <
> >>>>> avertl...@bloomberg.net> wrote:
> >>>>>
> >>>>>> Thanks Raul.
> >>>>>>
> >>>>>> Does this mean issues 1-3 are not really caused by my PR and I just
> >>>> need
> >>>>>> to wait for them to be fixed?
> >>>>>>
> >>>>>>
> >>>>>> From: dev@arrow.apache.org At: 07/21/22 09:51:09 UTC-4:00To:
> Arkadiy
> >>>>>> Vertleyb (BLOOMBERG/ 120 PARK ) ,  dev@arrow.apache.org
> >>>>>> Subject: Re: Help needed with PR #13659: Fixing build/unit test
> issues
> >>>> in
> >>>>>> msvc/win32
> >>>>>>
> >>>>>> Hi Arkadiy,
> >>>>>>
> >>>>>> For issues 2 and 3 there is currently an issue [1] with the protobuf
> >>>>>> version [2] distributed with homebrew [3] happening on master. These
> >>>> ones
> >>>>>> should be fixed once the upstream homebrew package is distributed.
> >>>>>> Issue 1 is also happening on master and I am not sure whether the
> >> issue
> >>>>> is
> >>>>>> tracked independently but there was a fix [4] on a PR [5]. I'll
> follow
> >>>>> that
> >>>>>> one up.
> >>>>>>
> >>>>>> Thanks,
> >>>>>> Raúl
> >>>>>>
> >>>>>> [1] https://issues.apache.org/jira/browse/ARROW-17162
> >>>>>> [2] https://github.com/protocolbuffers/protobuf/pull/10271
> >>>>>> [3] https://github.com/Homebrew/homebrew-core/pull/106252
> >>>>>> [4]
> >>>>>>
> >>>>>>
> >>>>>
> >>>>
> >>>>
> >>>
> >>
>
> 
https://github.com/apache/arrow/pull/13634/commits/9e10f6c3399d83ebce5af551561fa
> >>>>>> 3a16da9cd5e
> >>>>>> <
> >>>>>
> >>>>
> >>>>
> >>>
> >>
>
> 
https://github.com/apache/arrow/pull/13634/commits/9e10f6c3399d83ebce5af551561fa
> >>>> 3a16da9cd5e
> >>>>
> >>> <
> >>
>
> 
https://github.com/apache/arrow/pull/13634/commits/9e10f6c3399d83ebce5af551561fa
> 3a16da9cd5e
> 
<https://github.com/apache/arrow/pull/13634/commits/9e10f6c3399d83ebce5af551561fa3a16da9cd5e>
> >>>
> >>>>>>
> >>>>>> [5] https://github.com/apache/arrow/pull/13634
> >>>>>>
> >>>>>> On Thu, Jul 21, 2022 at 3:24 PM Arkadiy Vertleyb (BLOOMBERG/ 120
> PARK)
> >>>> <
> >>>>>> avertl...@bloomberg.net> wrote:
> >>>>>>
> >>>>>>> Hi all.
> >>>>>>>
> >>>>>>> Can someone help me understand how the changes in this PR (
> >>>>>>>
> >>>>>>
> >>>>>>
> >>>>>
> >>>>
> >>>>
> >>>
> >>
>
> 
https://github.com/apache/arrow/pull/13659/commits/e77ec9a84dab750bf016f9f5bd02e
> >>>>>> a48f2c8d77f
> >>>>>> <
> >>>>>
> >>>>
> >>>>
> >>>
> >>
>
> 
https://github.com/apache/arrow/pull/13659/commits/e77ec9a84dab750bf016f9f5bd02e
> >>>> a48f2c8d77f
> >>>>
> >>> <
> >>
>
> 
https://github.com/apache/arrow/pull/13659/commits/e77ec9a84dab750bf016f9f5bd02e
> a48f2c8d77f
> 
<https://github.com/apache/arrow/pull/13659/commits/e77ec9a84dab750bf016f9f5bd02ea48f2c8d77f>
> >>>
> >>>>>>
> >>>>>> )
> >>>>>>> caused the following build failures?
> >>>>>>>
> >>>>>>> Thanks,
> >>>>>>> Arkadiy
> >>>>>>>
> >>>>>>> Here are the failures:
> >>>>>>>
> >>>>>>> 1) AMD64 MacOS 10.15 GLib & Ruby
> >>>>>>>
> >>>>>>> c_glib/arrow-glib/meson.build:216:0: ERROR: Program 'glib-mkenums
> >>>>>> mkenums'
> >>>>>>> not found or not executable
> >>>>>>>
> >>>>>>> 2) AMD64 MacOS 10.15 Python 3
> >>>>>>>
> >>>>>>> E   ImportError:
> >>>> dlopen(/usr/local/lib/python3.9/site-packages/pyarrow/
> >>>>>>> lib.cpython-39-darwin.so, 2): Symbol not found:
> >>>>>>> __ZN6google8protobuf8internal16InternalMetadataD1Ev
> >>>>>>> E     Referenced from: /usr/local/lib/libarrow.900.dylib
> >>>>>>> E     Expected in: flat namespace
> >>>>>>> E    in /usr/local/lib/libarrow.900.dylib
> >>>>>>>
> >>>>>>> 3) AMD64 MacOS 10.15 C++
> >>>>>>>
> >>>>>>> Undefined symbols for architecture x86_64:
> >>>>>>>
> >>>>
> "google::protobuf::internal::InternalMetadata::~InternalMetadata()",
> >>>>>>> referenced from:
> >>>>>>>         google::protobuf::MessageLite::~MessageLite() in
> >>>>>>> libopentelemetry_proto.a(trace_service.pb.cc.o)
> >>>>>>>         google::protobuf::MessageLite::~MessageLite() in
> >>>>>>> libopentelemetry_proto.a(trace.pb.cc.o)
> >>>>>>>         google::protobuf::MessageLite::~MessageLite() in
> >>>>>>> libopentelemetry_proto.a(common.pb.cc.o)
> >>>>>>>         google::protobuf::MessageLite::~MessageLite() in
> >>>>>>> libopentelemetry_proto.a(resource.pb.cc.o)
> >>>>>>> ld: symbol(s) not found for architecture x86_64
> >>>>>>>
> >>>>>>> 4) AMD64 Windows 2019 Win32 C++17
> >>>>>>>
> >>>>>>> -- Could NOT find SnappyAlt (missing: Snappy_LIB
> Snappy_INCLUDE_DIR)
> >>>>>>> -- Building snappy from source
> >>>>>>> CMake Error at C:/Program
> >>>>>>>
> >>>>>>
> >>>>>
> >>>>
> >>
> Files/CMake/share/cmake-3.23/Modules/FindPackageHandleStandardArgs.cmake:230
> >>>>>>> (message):
> >>>>>>>     Could NOT find OpenSSL, try to set the path to OpenSSL root
> folder
> >>>> in
> >>>>>> the
> >>>>>>>     system variable OPENSSL_ROOT_DIR (missing:
> OPENSSL_CRYPTO_LIBRARY)
> >>>>>> (found
> >>>>>>>     suitable version "1.1.1i", minimum required is "1.0.2")
> >>>>>>> Call Stack (most recent call first):
> >>>>>>>     C:/Program
> >>>>>>>
> >>>>>>
> >>>>>
> >>>>
> >>
> Files/CMake/share/cmake-3.23/Modules/FindPackageHandleStandardArgs.cmake:594
> >>>>>>> (_FPHSA_FAILURE_MESSAGE)
> >>>>>>>     C:/Program
> >>>> Files/CMake/share/cmake-3.23/Modules/FindOpenSSL.cmake:578
> >>>>>>> (find_package_handle_standard_args)
> >>>>>>>     cmake_modules/ThirdpartyToolchain.cmake:1253 (find_package)
> >>>>>>>     CMakeLists.txt:575 (include)
> >>>>>>>
> >>>>>>>
> >>>>>>>
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>
> >>>>
> >>>>
> >>>> --
> >>>>
> >>>> *James Duong*
> >>>> Lead Software Developer
> >>>> Bit Quill Technologies Inc.
> >>>> Direct: +1.604.562.6082 | jam...@bitquilltech.com
> >>>> https://www.bitquilltech.com
> >>>>
> >>>> This email message is for the sole use of the intended recipient(s)
> and
> >> may
> >>>> contain confidential and privileged information.  Any unauthorized
> >> review,
> >>>> use, disclosure, or distribution is prohibited.  If you are not the
> >>>> intended recipient, please contact the sender by reply email and
> destroy
> >>>> all copies of the original message.  Thank you.
> >>>>
> >>>>
> >>>>
> >>>
> >>
> >
>
>
>


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