[Git][ghc/ghc][master] doc: Fix type error in hs_try_putmvar example

[Marge Bot (@marge-bot)]

Marge Bot pushed to branch master at Glasgow Haskell Compiler / GHC


Commits:
06f7db40 by Teo Camarasu at 2024-05-05T00:19:38-04:00
doc: Fix type error in hs_try_putmvar example
- - - - -


1 changed file:

- docs/users_guide/exts/ffi.rst


Changes:

=====================================
docs/users_guide/exts/ffi.rst
=====================================
@@ -998,7 +998,7 @@ the data.  We can do it like this:
        sp <- newStablePtrPrimMVar mvar
        fp <- mallocForeignPtr
        withForeignPtr fp $ \presult -> do
-         cap <- threadCapability =<< myThreadId
+         (cap, _) <- threadCapability =<< myThreadId
          scheduleCallback sp cap presult
          takeMVar mvar `onException`
            forkIO (do takeMVar mvar; touchForeignPtr fp)



View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/06f7db4001e4eee0f3076d949876f8f4af0eb6fb

-- 
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/06f7db4001e4eee0f3076d949876f8f4af0eb6fb
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