Add the slice indexing.

src/tensor.rs

@@ -114,13 +114,28 @@ impl Tensor {
         }
     }
 
+    pub(crate) fn strided_index(&self) -> crate::storage::StridedIndex {
+        crate::storage::StridedIndex::new(self.dims(), self.stride())
+    }
+
     pub fn to_vec1<S: crate::WithDType>(&self) -> Result<Vec<S>> {
-        // TODO: properly use the strides here.
-        todo!()
+        if self.rank() != 1 {
+            return Err(Error::UnexpectedNumberOfDims {
+                expected: 1,
+                got: self.rank(),
+                shape: self.shape().clone(),
+            });
+        }
+        match &self.storage {
+            Storage::Cpu(cpu_storage) => {
+                let data = S::cpu_storage_as_slice(cpu_storage)?;
+                Ok(self.strided_index().map(|i| data[i]).collect())
+            }
+        }
     }
 
     pub fn to_vec2<S: crate::WithDType>(&self) -> Result<Vec<Vec<S>>> {
-        // TODO: properly use the strides here.
+        // TODO: Similar to to_vec1 then reshape the resulting vec?
         todo!()
     }