https://bugs.llvm.org/show_bug.cgi?id=47931
Bug ID: 47931
Summary: initializer list {} fails for template instantiation +
map + tuple +vector
Product: clang
Version: 11.0
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: P
Component: C++
Assignee: unassignedclangb...@nondot.org
Reporter: juanlucas...@gmail.com
CC: blitzrak...@gmail.com, dgre...@apple.com,
erik.pilking...@gmail.com, llvm-bugs@lists.llvm.org,
richard-l...@metafoo.co.uk
Created attachment 24085
--> https://bugs.llvm.org/attachment.cgi?id=24085&action=edit
fail exemple
this is a pretty specific bug, probably due to the explicit instantiation:
when having an initialisation list for a std::map<something1,
std::tuple<something2, std::vector<something3>>> inside an explicitly
instantiated function, there is a failure of type:
Undefined symbols for architecture x86_64: std::__1::allocator<unsigned long> >
>::~tuple()"
there is no reason why the attached code should fail to compile, and it
actually works on gcc.
note:
-remove the explicit instantiation and it works
-replace the vector by a simple type like int and it works
-remove the map and it works
I used "clang++ -std=c++17 ./clangbug.cpp"
sorry I'm new here let me know if anything else is needed
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