1363. offsetof should be marked noexcept

Section: 17.2 [support.types] Status: C++11 Submitter: BSI Opened: 2010-08-25 Last modified: 2016-01-28 10:19:27 UTC

Priority: Not Prioritized

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Addresses GB-68

There is no reason for the offsetof macro to invoke potentially throwing operations, so the result of noexcept(offsetof(type,member-designator)) should be true.

[ Resolved in Rapperswil by a motion to directly apply the words from the ballot comment in N3102. ]

Proposed resolution:

Add to the end of 18.2p4:

No operation invoked by the offsetof macro shall throw an exception, and noexcept(offsetof(type,member-designator)) shall be true.