Jim Apple created ARROW-7395:
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Summary: Logical "or" with constants is a Clang warning
Key: ARROW-7395
URL: https://issues.apache.org/jira/browse/ARROW-7395
Project: Apache Arrow
Issue Type: Bug
Components: C++
Affects Versions: 0.15.0
Reporter: Jim Apple
Assignee: Jim Apple
With clang version 9.0.1, the C++ debug build fails with:
{noformat}
In file included from
/home/jbapple/code/arrow/cpp/src/arrow/vendored/xxhash/xxhash.h:532:
/home/jbapple/code/arrow/cpp/src/arrow/vendored/xxhash/xxhash.c:810:11: error:
use of logical '||' with constant operand [-Werror,-Wconstant-logical-operand]
if (0 || 0) {
^ ~
/home/jbapple/code/arrow/cpp/src/arrow/vendored/xxhash/xxhash.c:810:11: note:
use '|' for a bitwise operation
if (0 || 0) {
^~
|
{noformat}
The simple fix is to add {{-Wno-constant-logical-operand}} to
SetupCxxFlags.cmake.
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