diff options
| author | Tom Smeding <tom@tomsmeding.com> | 2025-12-02 15:03:10 +0100 |
|---|---|---|
| committer | Tom Smeding <tom@tomsmeding.com> | 2025-12-02 15:03:43 +0100 |
| commit | b63642a41f3bddc991d92f2f59b9e3ad53c1f15e (patch) | |
| tree | a63b978be8baab76c7aa7a99b13a93b408bfc913 /src/Data/Array/Nested/Shaped.hs | |
| parent | af0c099079dae7aa52a660b883204035cbed99c3 (diff) | |
Provide ix*FromLinear for all three shape kinds
This speeds up {r,s}generatePrim
Diffstat (limited to 'src/Data/Array/Nested/Shaped.hs')
| -rw-r--r-- | src/Data/Array/Nested/Shaped.hs | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/Data/Array/Nested/Shaped.hs b/src/Data/Array/Nested/Shaped.hs index 075549d..99ad590 100644 --- a/src/Data/Array/Nested/Shaped.hs +++ b/src/Data/Array/Nested/Shaped.hs @@ -72,10 +72,13 @@ sindexPartial sarr@(Shaped arr) idx = sgenerate :: forall sh a. KnownElt a => ShS sh -> (IIxS sh -> a) -> Shaped sh a sgenerate sh f = Shaped (mgenerate (shxFromShS sh) (f . ixsFromIxX sh)) +-- | See 'mgeneratePrim'. {-# INLINE sgeneratePrim #-} sgeneratePrim :: forall sh a i. (PrimElt a, Num i) => ShS sh -> (IxS sh i -> a) -> Shaped sh a -sgeneratePrim sh f = Shaped (mgeneratePrim (shxFromShS sh) (f . ixsFromIxX sh)) +sgeneratePrim sh f = + let g i = f (ixsFromLinear sh i) + in sfromVector sh $ VS.generate (shsSize sh) g -- | See the documentation of 'mlift'. slift :: forall sh1 sh2 a. Elt a |