From 15bc6086ec7ee9e72efa7faf02514e5938377ff6 Mon Sep 17 00:00:00 2001
From: Suyash Bagad <suyashnbagad1997@gmail.com>
Date: Thu, 20 Apr 2023 10:08:07 +0000
Subject: [PATCH] gcc fix.

---
 cpp/src/barretenberg/crypto/ecdsa/ecdsa_impl.hpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/cpp/src/barretenberg/crypto/ecdsa/ecdsa_impl.hpp b/cpp/src/barretenberg/crypto/ecdsa/ecdsa_impl.hpp
index 2920b420b3..33cec9c433 100644
--- a/cpp/src/barretenberg/crypto/ecdsa/ecdsa_impl.hpp
+++ b/cpp/src/barretenberg/crypto/ecdsa/ecdsa_impl.hpp
@@ -40,7 +40,10 @@ signature construct_signature(const std::string& message, const key_pair<Fr, G1>
     bool is_r_finite = (uint256_t(r_fq) == uint256_t(r_fr));
     bool y_parity = uint256_t(R.y).get_bit(0);
     constexpr uint8_t offset = 27;
-    sig.v = offset + y_parity + static_cast<uint8_t>(2) * !is_r_finite;
+
+    int value = offset + y_parity + static_cast<uint8_t>(2) * !is_r_finite;
+    ASSERT(value <= UINT8_MAX);
+    sig.v = static_cast<uint8_t>(value);
     return sig;
 }