Bug 19838 – RefCounted fails to instantiate due to pureness of moveEmplace

I am getting this error when compiling with DMD 2.085.1. It works fine with 2.083.1 Unfortunately I was not able to put together a simple test case. /usr/include/dmd/phobos/std/typecons.d(6236,24): Error: pure function std.typecons.RefCounted!(WrappedConnection!(LockedConnection!(Connection!VibeSocket*)), cast(RefCountedAutoInitialize)1).RefCounted.RefCountedStore.move cannot call impure function std.algorithm.mutation.moveEmplace!(WrappedConnection!(LockedConnection!(Connection!VibeSocket*))).moveEmplace Looking at the code, it seems this commit broke it: https://github.com/dlang/phobos/commit/c4324f405c6aea75c9c074c42a21b42a2a361d76#diff-4e008aedb3026d4a84f58323e53bf017 RefCountedStore.move() was made pure nothrow, but there is no guarantee that std.algorithm.moveEmplace will be so, as I suppose it's pureness is infered and therefore not always true.

@marcioapm created dlang/phobos pull request #7006 "Fix Issue 19838 - RefCounted fails to instantiate due to pureness of …" fixing this issue: - Fix Issue 19838 - RefCounted fails to instantiate due to pureness of moveEmplace https://github.com/dlang/phobos/pull/7006

dlang/phobos pull request #7006 "Fix Issue 19838 - RefCounted fails to instantiate due to pureness of …" was merged into stable: - 2e408f13ea35b1b4242d7384782164f267a0dc96 by Márcio Martins: Fix Issue 19838 - RefCounted fails to instantiate due to pureness of moveEmplace https://github.com/dlang/phobos/pull/7006