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Added suggestion to use a pointer member instead of a reference; closes #1783

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Herb Sutter
2021-06-10 11:36:01 -07:00
parent 03fc3a359b
commit 402815345e
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CppCoreGuidelines.md
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@@ -4593,6 +4593,12 @@ They are not useful, and make types difficult to use by making them either uncop
// ... // ...
}; };
The `const` and `&` data members make this class "only-sort-of-copyable" -- copy-constructible but not copy-assignable.
##### Note
If you need a member to point to something, use a pointer (raw or smart, and `gsl::not_null` if it should not be null) instead of a reference.
##### Enforcement ##### Enforcement
Flag a data member that is `const`, `&`, or `&&`. Flag a data member that is `const`, `&`, or `&&`.