David Li created ARROW-13819:
--------------------------------
Summary: [C++] Build fails with "'subseconds' may be used
uninitialized in this function"
Key: ARROW-13819
URL: https://issues.apache.org/jira/browse/ARROW-13819
Project: Apache Arrow
Issue Type: Bug
Components: C++
Reporter: David Li
Assignee: David Li
Started happening after updating my Conda environment.
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In file included from
/home/lidavidm/Code/upstream/arrow-13812/cpp/src/arrow/util/value_parsing.cc:18:
/home/lidavidm/Code/upstream/arrow-13812/cpp/src/arrow/util/value_parsing.h: In
member function 'virtual bool
arrow::internal::{anonymous}::ISO8601Parser::operator()(const char*, size_t,
arrow::TimeUnit::type, int64_t*) const':
/home/lidavidm/Code/upstream/arrow-13812/cpp/src/arrow/util/value_parsing.h:532:29:
error: 'subseconds' may be used uninitialized in this function
[-Werror=maybe-uninitialized]
532 | *out = subseconds * 10;
| ~~~~~~~~~~~^~~~
/home/lidavidm/Code/upstream/arrow-13812/cpp/src/arrow/util/value_parsing.h:527:14:
note: 'subseconds' was declared here
527 | uint32_t subseconds;
| ^~~~~~~~~~
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