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https://issues.apache.org/jira/browse/ARROW-16778?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17552978#comment-17552978
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Arkadiy Vertleyb commented on ARROW-16778:
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[~willjones127] Can you try the following under your 32 bit architecture (where
tests pass)?
1) break in the TEST_F(TestSetBitRunReader, OneByte)
2) put breakpoints on:
- SkipNextZeroes
- CountNextOnes
3) see what is going on.
In my system:
current_word_ = 182 (1011 0110)
num_zeros = 0;
current_word remain 182 -- no zeroes removed
Then the following asserts because 182 & 1 == 0:
int64_t CountNextOnes() {
assert(current_word_ & kFirstBit);
I have a feeling something may be wrong with the byte ordering, but I am not
sure.
> [C++] 32 bit MSVC doesn't build
> -------------------------------
>
> Key: ARROW-16778
> URL: https://issues.apache.org/jira/browse/ARROW-16778
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++
> Environment: Win32, MSVC
> Reporter: Arkadiy Vertleyb
> Priority: Major
>
> When specifying Win32 as a platform, and building with MSVC, the build fails
> with the following compile errors :
> {noformat}
> C:\Users\avertleyb\git\arrow\cpp\src\arrow/util/bit_util.h(70,59): error
> C3861: '__popcnt64': identifier not found
> [C:\Users\avertleyb\git\arrow\cpp\build32\src\arrow\arrow_shared.vcxproj]
> C:\Users\avertleyb\git\arrow\cpp\src\arrow/util/bit_util.h(204,7): error
> C3861: '_BitScanReverse64': identifier not found
> [C:\Users\avertleyb\git\arrow\cpp\build32\src\arrow\arrow_shared.vcxproj]
> C:\Users\avertleyb\git\arrow\cpp\src\arrow/util/bit_util.h(250,7): error
> C3861: '_BitScanForward64': identifier not found
> [C:\Users\avertleyb\git\arrow\cpp\build32\src\arrow\arrow_shared.vcxproj]
> {noformat}
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