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### 1411. Add a compile-time flag to detect `monotonic_clock`

Section: 99 [time.clock.monotonic] Status: Dup Submitter: DIN Opened: 2010-08-25 Last modified: 2016-01-28

Priority: Not Prioritized

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Duplicate of: 1410

Discussion:

Addresses DE-20

The library component `monotonic_clock` is conditionally supported, but no compile-time flag exists that allows user-code to query its existence. Further-on there exist no portable means to simulate such a query. (To do so, user code would be required to add types to namespace `std::chrono`.)

Proposed resolution:

Provide a compile-time flag (preferably a macro) that can be used to query the existence of `monotonic_clock`.