[Bug]: No support for std::derived_from concept

[SarkisKhachatryan]

Description

when trying to use std::derived_from concept, getting this error.

error: no template named 'derived_from' in namespace 'std'
      template <std::derived_from<smth> T>

Upstream bug

No response

Commit to cherry-pick

No response

Affected versions

r25

Canary version

No response

Host OS

Linux

Host OS version

Ubuntu 20.04

Affected ABIs

arm64-v8a

[SarkisKhachatryan]

As a workaround, added this code snippet to use it for now

template <class Derived, class Base>
concept derived_from = std::is_base_of_v<Base, Derived> &&
    std::is_convertible_v<const volatile Derived*, const volatile Base*>;

this works fine

[DanAlbert]

Any reason to believe this isn't a duplicate of the pinned issue #1530?

[DanAlbert]

Closing for lack of feedback. Probably a dup.

[SarkisKhachatryan]

Sure, thanks