[ARROW-8951] [C++] Fix compiler warning in compute/kernels/scalar_cast_temporal.cc

• Type: Bug
• 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/25077
• Assignee: Wes McKinney
• Reporter: Wes McKinney
• Created: 26/May/20 17:33
• Updated: 11/Jan/23 08:03
• Resolved: 03/Jun/20 01:19

Description

The kernel functor can return an uninitialized value on errors

../src/arrow/compute/kernels/scalar_cast_temporal.cc: In member function ‘OUT arrow::compute::internal::ParseTimestamp::Call(arrow::compute::KernelContext*, ARG0) const [with OUT = long int; ARG0 = nonstd::sv_lite::basic_string_view<char>]’:
../src/arrow/compute/kernels/scalar_cast_temporal.cc:267:12: warning: ‘result’ may be used uninitialized in this function [-Wmaybe-uninitialized]
     return result;

Issue Links

• links to: GitHub Pull Request #7330