stackoverflow January 30, 2026 Rep: 25,086

Can not-const nullptr_t variable be a template non-type argument?

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January 30, 2026 Score: 3 Rep: 2,878 Quality: Low Completeness: 60%

Yes: the resolution of CWG2907 made this code valid by specifying that the lvalue-to-rvalue conversion can be applied to any expression of type cv nullptr_t during constant evaluation, even if the underlying object is not usable in constant expressions.

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Can not-const nullptr_t variable be a template non-type argument?

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