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| author | Simon Marlow <marlowsd@gmail.com> | 2010-07-20 08:28:04 +0000 |
|---|---|---|
| committer | Simon Marlow <marlowsd@gmail.com> | 2010-07-20 08:28:04 +0000 |
| commit | 73bd02b6e03ff1fbd508ad222c39f5cbd1c006b2 (patch) | |
| tree | 85370b07f80f41f52d09afa66c0da699689753ce /libraries/base/Foreign.hs | |
| parent | 80d8b2fb62f725c7d04dc03d888e781153d03d72 (diff) | |
| download | haskell-73bd02b6e03ff1fbd508ad222c39f5cbd1c006b2.tar.gz | |
docs: mention that Foreign.unsafePerformIO is deprecated
We can't actually deprecate it without introducing a name clash
between Foreign.unsafePerformIO and System.IO.Unsafe.unsafePerformIO
Diffstat (limited to 'libraries/base/Foreign.hs')
| -rw-r--r-- | libraries/base/Foreign.hs | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/libraries/base/Foreign.hs b/libraries/base/Foreign.hs index 622ec9332a..5976c20985 100644 --- a/libraries/base/Foreign.hs +++ b/libraries/base/Foreign.hs @@ -24,8 +24,10 @@ module Foreign , module Foreign.Storable , module Foreign.Marshal - -- | For compatibility with the FFI addendum only. The recommended - -- place to get this from is "System.IO.Unsafe". + -- | 'unsafePerformIO' is exported here for backwards + -- compatibility reasons only. For doing local marshalling in + -- the FFI, use 'unsafeLocalState'. For other uses, see + -- 'System.IO.Unsafe.unsafePerformIO'. , unsafePerformIO ) where |