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### 1156. Constraints on bitmask and enumeration types to be tightened

Section: 16.3.3.3.3 [enumerated.types], 16.3.3.3.4 [bitmask.types] Status: NAD Submitter: LWG Opened: 2009-06-28 Last modified: 2016-01-28

Priority: Not Prioritized

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Discussion:

Addresses UK 165

Description

Constraints on bitmask and enumeration types were supposed to be tightened up as part of the motivation for the `constexpr` feature - see paper N2235 for details

Suggestion

Adopt wording in line with the motivation described in N2235

Notes

Robert Klarer to review

[ 2009 Santa Cruz: ]

> Move to Open. Ping Robert Klarer to provide wording, using N2235 as guidance.

[ 2010 Pittsburgh: ]

> Moved to NAD. Rationale added.

Rationale:

UK NB did not sufficiently describe how to resolve their comment, and therefore we cannot make a change for the FCD. If a resolution were provided in the future, we would be happy to apply it.

Proposed resolution: