[ARROW-3852] [C++] used uninitialized warning

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.11.1
• Fix Version/s: 0.12.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/20368
• Assignee: Kouhei Sutou
• Reporter: Kouhei Sutou
• Created: 22/Nov/18 14:28
• Updated: 11/Jan/23 07:30
• Resolved: 22/Nov/18 16:17

Description

    In file included from ../src/arrow/util/bit-util-test.cc:35:
    ../src/arrow/util/bit-stream-utils.h: In function 'void arrow::TestZigZag(int32_t)':
    ../src/arrow/util/bit-stream-utils.h:110:11: warning: 'buffer' is used uninitialized in this function [-Wuninitialized]
         memcpy(&buffered_values_, buffer_ + byte_offset_, num_bytes);
         ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Issue Links

• links to: GitHub Pull Request #3013