Add support for [[lifetimebound]]
#7155
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davebayer
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Jan 12, 2026
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I am not sure about the tests. If the attribute doesn't work properly, it's the compiler's problem and we cannot do anything about it
libcudacxx/test/libcudacxx/libcxx/macros/lifetime_bound.compile.pass.cpp
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libcudacxx/test/libcudacxx/libcxx/macros/lifetime_bound.compile.fail.cpp
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davebayer
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Jan 14, 2026
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🥳 CI Workflow Results🟩 Finished in 1h 42m: Pass: 100%/84 | Total: 20h 44m | Max: 1h 42m | Hits: 97%/198723See results here. |
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Description
The PR introduces the
_CCCL_LIFETIMEBOUNDmacro to handle thelifetimeboundattribute across different compilers, including Clang and MSVC.The macro will be useful to trigger compile-time warning for potentially dangling references.
One example is
mdspan to DLPack#7027Thanks @gevtushenko for the idea