`impl ToBytesGadget for Vec<UInt8>` (#76)

CHANGELOG.md

@@ -6,6 +6,8 @@
 
 ### Features
 
+- [\#76](https://github.com/arkworks-rs/r1cs-std/pull/76) Implement `ToBytesGadget` for `Vec<UInt8>`.
+
 ### Improvements
 
 ### Bug Fixes

src/bits/mod.rs

@@ -116,6 +116,12 @@ impl ToBytesGadget for [UInt8] {
     }
 }
 
+impl<F: Field> ToBytesGadget<F> for Vec<UInt8<F>> {
+    fn to_bytes(&self) -> Result<Vec<UInt8<F>>, SynthesisError> {
+        Ok(self.clone())
+    }
+}
+
 impl<'a, F: Field, T: 'a + ToBytesGadget<F>> ToBytesGadget<F> for &'a T {
     fn to_bytes(&self) -> Result<Vec<UInt8<F>>, SynthesisError> {
         (*self).to_bytes()