[ARROW-8745] [C++] Bitmap.ToString causes failures on a big-endian platform

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.0.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/17172
• Assignee: Kazuaki Ishizaki
• Reporter: Kazuaki Ishizaki
• Created: 09/May/20 08:01
• Updated: 11/Jan/23 08:02
• Resolved: 11/May/20 16:21

Description

The new test causes the failure on a big-endian platform.

1: [----------] 5 tests from Bitmap
1: [ RUN      ] Bitmap.ShiftingWordsOptimization
1: [       OK ] Bitmap.ShiftingWordsOptimization (7 ms)
1: [ RUN      ] Bitmap.VisitWords
1: [       OK ] Bitmap.VisitWords (3 ms)
1: [ RUN      ] Bitmap.VisitPartialWords
1: [       OK ] Bitmap.VisitPartialWords (0 ms)
1: [ RUN      ] Bitmap.ToString
1: /home/ishizaki/Arrow/arrow-rle/cpp/src/arrow/util/bit_util_test.cc:1265: Failure
1: Expected equality of these values:
1:   Bitmap(bitmap, 0, 34).ToString()
1:     Which is: "00000000 00000000 00000000 00000000 00"
1:   "00110101 01010011 00000000 00000000 00"
1: /home/ishizaki/Arrow/arrow-rle/cpp/src/arrow/util/bit_util_test.cc:1267: Failure
1: Expected equality of these values:
1:   Bitmap(bitmap, 0, 16).ToString()
1:     Which is: "00000000 00000000"
1:   "00110101 01010011"
1: /home/ishizaki/Arrow/arrow-rle/cpp/src/arrow/util/bit_util_test.cc:1268: Failure
1: Expected equality of these values:
1:   Bitmap(bitmap, 0, 11).ToString()
1:     Which is: "00000000 000"
1:   "00110101 010"
1: /home/ishizaki/Arrow/arrow-rle/cpp/src/arrow/util/bit_util_test.cc:1269: Failure
1: Expected equality of these values:
1:   Bitmap(bitmap, 3, 8).ToString()
1:     Which is: "00000000"
1:   "10101010"
1: [  FAILED  ] Bitmap.ToString (1 ms)
1: [ RUN      ] Bitmap.VisitWordsAnd
1: [       OK ] Bitmap.VisitWordsAnd (708 ms)
1: [----------] 5 tests from Bitmap (719 ms total)

Issue Links

• links to: GitHub Pull Request #7134