From 6eb091c736fd625f25e0cffe871dce4f59ec36f5 Mon Sep 17 00:00:00 2001
From: Alexander Popiak <alexander.popiak@parity.io>
Date: Thu, 6 May 2021 12:56:24 +0200
Subject: [PATCH] derive Encode and Decode for BigUint (#8744)
---
substrate/primitives/arithmetic/src/biguint.rs | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/substrate/primitives/arithmetic/src/biguint.rs b/substrate/primitives/arithmetic/src/biguint.rs
index 906c4d0cfd3..bfbd57f5701 100644
--- a/substrate/primitives/arithmetic/src/biguint.rs
+++ b/substrate/primitives/arithmetic/src/biguint.rs
@@ -19,6 +19,7 @@
use num_traits::{Zero, One};
use sp_std::{cmp::Ordering, ops, prelude::*, vec, cell::RefCell, convert::TryFrom};
+use codec::{Encode, Decode};
// A sensible value for this would be half of the dword size of the host machine. Since the
// runtime is compiled to 32bit webassembly, using 32 and 64 for single and double respectively
@@ -78,7 +79,7 @@ fn div_single(a: Double, b: Single) -> (Double, Single) {
}
/// Simple wrapper around an infinitely large integer, represented as limbs of [`Single`].
-#[derive(Clone, Default)]
+#[derive(Encode, Decode, Clone, Default)]
pub struct BigUint {
/// digits (limbs) of this number (sorted as msb -> lsb).
pub(crate) digits: Vec<Single>,
--
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