1 files changed, 18 insertions, 0 deletions

diff --git a/lib/Data/Packed/Internal/Vector.hs b/lib/Data/Packed/Internal/Vector.hs
index ba68909..70bbae2 100644
--- a/lib/Data/Packed/Internal/Vector.hs
+++ b/lib/Data/Packed/Internal/Vector.hs
@@ -22,6 +22,7 @@ module Data.Packed.Internal.Vector (
     foldVector, foldVectorG, foldLoop, foldVectorWithIndex,
     createVector, vec,
     asComplex, asReal, float2DoubleV, double2FloatV,
+    stepF, stepD,
     fwriteVector, freadVector, fprintfVector, fscanfVector,
     cloneVector,
     unsafeToForeignPtr,
@@ -292,6 +293,23 @@ double2FloatV v = unsafePerformIO $ do
 foreign import ccall "float2double" c_float2double:: TFV
 foreign import ccall "double2float" c_double2float:: TVF
 
+---------------------------------------------------------------
+
+stepF :: Vector Float -> Vector Float
+stepF v = unsafePerformIO $ do
+    r <- createVector (dim v)
+    app2 c_stepF vec v vec r "stepF"
+    return r
+
+stepD :: Vector Double -> Vector Double
+stepD v = unsafePerformIO $ do
+    r <- createVector (dim v)
+    app2 c_stepD vec v vec r "stepD"
+    return r
+
+foreign import ccall "stepF" c_stepF :: TFF
+foreign import ccall "stepD" c_stepD :: TVV
+
 ----------------------------------------------------------------
 
 cloneVector :: Storable t => Vector t -> IO (Vector t)