diff --git a/src/features/impl_std.rs b/src/features/impl_std.rs
index 5226f78..e0b7b4b 100644
--- a/src/features/impl_std.rs
+++ b/src/features/impl_std.rs
@@ -81,6 +81,7 @@ where
 
 /// Encode the given value into any type that implements `std::io::Write`, e.g. `std::fs::File`, with the given `Config`.
 /// See the [config] module for more information.
+/// Returns the amount of bytes written.
 ///
 /// [config]: config/index.html
 #[cfg_attr(docsrs, doc(cfg(feature = "std")))]
diff --git a/src/lib.rs b/src/lib.rs
index 9c13e47..bd1ac76 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -132,7 +132,7 @@ pub fn encode_into_writer<E: enc::Encode, W: Writer, C: Config>(
     Ok(())
 }
 
-/// Attempt to decode a given type `D` from the given slice.
+/// Attempt to decode a given type `D` from the given slice. Returns the decoded output and the amount of bytes read.
 ///
 /// See the [config] module for more information on configurations.
 ///
@@ -148,7 +148,7 @@ pub fn decode_from_slice<D: de::Decode, C: Config>(
     Ok((result, bytes_read))
 }
 
-/// Attempt to decode a given type `D` from the given slice.
+/// Attempt to decode a given type `D` from the given slice. Returns the decoded output and the amount of bytes read.
 ///
 /// See the [config] module for more information on configurations.
 ///