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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
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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
Flag a data member that is `const`, `&`, or `&&`.