diff options
Diffstat (limited to 'libraries/ghc-prim/GHC/Prim/PtrEq.hs')
| -rw-r--r-- | libraries/ghc-prim/GHC/Prim/PtrEq.hs | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/libraries/ghc-prim/GHC/Prim/PtrEq.hs b/libraries/ghc-prim/GHC/Prim/PtrEq.hs index 5cc3e511e6..ba58857868 100644 --- a/libraries/ghc-prim/GHC/Prim/PtrEq.hs +++ b/libraries/ghc-prim/GHC/Prim/PtrEq.hs @@ -45,7 +45,6 @@ default () -- Double and Integer aren't available yet {- Note [Pointer equality operations] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - Many primitive types - such as Array#, ByteArray#, MVar#, ... - are boxed: they are represented by pointers to the underlying data. It is thus possible to directly compare these pointers for equality, as opposed to comparing @@ -55,7 +54,7 @@ two arrays element-wise). To do this, GHC provides the primop reallyUnsafePtrEquality#, which is both levity-polymorphic and heterogeneous. As its name indicates, it is an unsafe operation which can yield unpredictable results, as explained in - Note [Pointer comparison operations] in primops.txt.pp +Note [Pointer comparison operations] in primops.txt.pp For a more user-friendly interface, this module defines specialisations of the reallyUnsafePtrEquality# primop at various primitive types, such as @@ -116,7 +115,6 @@ sameIOPort# = reallyUnsafePtrEquality# -- Note [Comparing stable names] -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ --- -- A StableName# is actually a pointer to a stable name object (SNO) -- containing an index into the stable name table (SNT). We -- used to compare StableName#s by following the pointers to the |