ARROW-11277: [C++] Workaround macOS 10.11: don't default construct consts #9267
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pitrou
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Jan 19, 2021
| [](const Expression& argument) { return argument.literal(); })) { | ||
| // all arguments are literal; we can evaluate this subexpression *now* | ||
| static const Datum ignored_input; | ||
| static const Datum ignored_input = Datum{}; |
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Perhaps we can give Datum a default constructor?
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Datum has one already; resolution of that constructor is just failing here
pitrou
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Jan 19, 2021
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+1 since we have to deal with lousy compilers
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Thanks I'm going to test this patch on top of rc2. Btw the MacOS 10.11 target be be EOL for us in april/may (but I imagine RHEL users will have the same issues....) |
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Thanks confirmed this works. With this patch I can build rc2 on macos 10.11 |
kszucs
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Jan 25, 2021
…nsts ```c++ /tmp/apache-arrow-20210116-6233-1jyrhk8/apache-arrow-3.0.0/cpp/src/arrow/dataset/expression.cc /tmp/apache-arrow-20210116-6233-1jyrhk8/apache-arrow-3.0.0/cpp/src/arrow/dataset/expression.cc:684:30: error: default initialization of an object of const type 'const arrow::Datum' without a user-provided default constructor static const Datum ignored_input; ``` Datum defines a default constructor but it doesn't seem to be found for const/constexpr decls Closes #9267 from bkietz/11277-Fix-compilation-error-in- Authored-by: Benjamin Kietzman <bengilgit@gmail.com> Signed-off-by: Neal Richardson <neal.p.richardson@gmail.com>
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Datum defines a default constructor but it doesn't seem to be found for const/constexpr decls