From 0b0421846839ce22f24b8e9ef8e849774fb1ec3f Mon Sep 17 00:00:00 2001
From: Matt Keeter <matt@oxide.computer>
Date: Thu, 5 Sep 2024 09:42:04 -0400
Subject: [PATCH] Add docstring

---
 ssh-key/src/signature.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ssh-key/src/signature.rs b/ssh-key/src/signature.rs
index 3770e1f..50f0668 100644
--- a/ssh-key/src/signature.rs
+++ b/ssh-key/src/signature.rs
@@ -519,6 +519,7 @@ impl_signature_for_curve!(p256, "p256", NistP256, 32);
 impl_signature_for_curve!(p384, "p384", NistP384, 48);
 impl_signature_for_curve!(p521, "p521", NistP521, 66);
 
+/// Build a generic sized object from a `u8` iterator, with leading zero padding
 #[cfg(any(feature = "p256", feature = "p384", feature = "p521"))]
 fn zero_pad_field_bytes<B: FromIterator<u8> + Copy>(m: Mpint) -> Option<B> {
     use core::mem::size_of;