Skip to content

Enforce Complex on 'imag' and 'real' functions. #16

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 2 commits into from
Nov 6, 2019
Merged

Enforce Complex on 'imag' and 'real' functions. #16

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
c6c8aff
Enfore Complex on 'imag' and 'real' functions.
dmjio Nov 5, 2019
a35753a
Constrain real/imag on RealFrac.
dmjio Nov 6, 2019
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
24 changes: 13 additions & 11 deletions src/ArrayFire/Arith.hs
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
{-# LANGUAGE TypeApplications #-}
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE ScopedTypeVariables #-}
{-# LANGUAGE ViewPatterns #-}
--------------------------------------------------------------------------------
Expand All @@ -24,10 +25,11 @@
--------------------------------------------------------------------------------
module ArrayFire.Arith where

import Prelude (Bool(..), ($), (.), flip, fromEnum, fromIntegral, Real)
import Prelude (Bool(..), ($), (.), flip, fromEnum, fromIntegral, Real, RealFrac)

import Data.Coerce
import Data.Proxy
import Data.Complex

import ArrayFire.FFI
import ArrayFire.Internal.Arith
Expand Down Expand Up @@ -1195,31 +1197,31 @@ cplx = flip op1 af_cplx

-- | Execute real
--
-- >>> A.real (A.vector @Double 10 [1..])
-- >>> A.real (A.scalar @(Complex Double) (10 :+ 11)) :: Array Double
-- ArrayFire Array
-- [10 1 1 1]
-- 1.0000 2.0000 3.0000 4.0000 5.0000 6.0000 7.0000 8.0000 9.0000 10.0000
-- 10.0000
real
:: AFType a
=> Array a
:: (AFType a, AFType (Complex b), RealFrac a, RealFrac b)
=> Array (Complex b)
-- ^ Input array
-> Array a
-- ^ Result of calling 'real'
real = flip op1 af_real
real = flip op1d af_real

-- | Execute imag
--
-- >>> A.imag (A.vector @Double 10 [1..])
-- >>> A.imag (A.scalar @(Complex Double) (10 :+ 11)) :: Array Double
-- ArrayFire Array
-- [10 1 1 1]
-- 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
-- 11.0000
imag
:: AFType a
=> Array a
:: (AFType a, AFType (Complex b), RealFrac a, RealFrac b)
=> Array (Complex b)
-- ^ Input array
-> Array a
-- ^ Result of calling 'imag'
imag = flip op1 af_imag
imag = flip op1d af_imag

-- | Execute conjg
--
Expand Down
16 changes: 16 additions & 0 deletions src/ArrayFire/FFI.hs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -220,6 +220,22 @@ opw1 (Window fptr) op
throwAFError =<< op p ptr
peek p

op1d
:: Array a
-> (Ptr AFArray -> AFArray -> IO AFErr)
-> Array b
{-# NOINLINE op1d #-}
op1d (Array fptr1) op =
unsafePerformIO $ do
withForeignPtr fptr1 $ \ptr1 -> do
ptr <-
alloca $ \ptrInput -> do
throwAFError =<< op ptrInput ptr1
peek ptrInput
fptr <- newForeignPtr af_release_array_finalizer ptr
pure (Array fptr)


op1
:: Array a
-> (Ptr AFArray -> AFArray -> IO AFErr)
Expand Down