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### 1488. Improve interoperability between the C++0x and C1x threads APIs

Section: 32.5 [thread.mutex] Status: LEWG Submitter: INCITS Opened: 2010-08-25 Last modified: 2017-03-01

Priority: Not Prioritized

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Discussion:

Addresses US-185

Cooperate with WG14 to improve interoperability between the `C++0x` and `C1x` threads APIs. In particular, `C1x` mutexes should be conveniently usable with a `C++0x` `lock_guard`. Performance overheads for this combination should be considered.

[ Resolution proposed by ballot comment: ]

> Remove `C++0x` `timed_mutex` and `timed_recursive_mutex` if that facilitates development of more compatible APIs.

[ 2010 Batavia ]

The concurrency sub-group reviewed the options, and decided that closer harmony should wait until both standards are published.

Rationale:

The LWG does not wish to make any change at this time.

[2017-03-01, Kona]

SG1 recommends: Close as NAD

Papers about C compatibility are welcome, but there may be more pressing issues. C threads are not consistently available at this point, so there seems to be little demand to fix this particular problem.

Proposed resolution: