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### 1506. `set_exception` with a null pointer

Section: 33.10.6 [futures.promise] Status: NAD Editorial Submitter: INCITS Opened: 2010-08-25 Last modified: 2016-01-28

Priority: Not Prioritized

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Discussion:

Addresses US-198

`promise::set_exception` can be called with a null pointer, but none of the descriptions of the `get()` functions for the three types of futures say what happens for this case.

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

Proposed resolution:

Add the following sentence to the end of 30.6.5/22: The behavior of a program that calls `set_exception` with a null pointer is undefined.