diff options
Diffstat (limited to 'libraries/ghc-prim/GHC/CString.hs')
| -rw-r--r-- | libraries/ghc-prim/GHC/CString.hs | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/libraries/ghc-prim/GHC/CString.hs b/libraries/ghc-prim/GHC/CString.hs index 1edeecbbfa..680d3c8a39 100644 --- a/libraries/ghc-prim/GHC/CString.hs +++ b/libraries/ghc-prim/GHC/CString.hs @@ -135,9 +135,9 @@ Moreover, we want to make it CONLIKE, so that: All of this goes for unpackCStringUtf8# too. -} -{- Note [Inlining of unpackFoldrCString] +{- +Note [Inlining of unpackFoldrCString] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - Usually the unpack-list rule turns unpackFoldrCString# into unpackCString# It also has a BuiltInRule in PrelRules.hs: unpackFoldrCString# "foo" c (unpackFoldrCString# "baz" c n) @@ -154,9 +154,8 @@ when looking at nofib. This is especially important for elem which then results in an allocation free loop. - Note [unpackCString# iterating over addr] +Note [unpackCString# iterating over addr] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - When unpacking unpackCString# and friends repeatedly return a cons cell containing: * The current character we just unpacked. @@ -175,7 +174,6 @@ the string and the current offset, saving a word for each character unpacked. This has the additional advantage the we can guarantee that only the increment will happen in the loop. - -} unpackCString# :: Addr# -> [Char] |