From 95bc90adc4b4afb3408a9b7f29ff949b494a1e1c Mon Sep 17 00:00:00 2001
From: Jeffrey Walton <noloader@gmail.com>
Date: Fri, 22 Feb 2019 08:38:20 -0500
Subject: [PATCH] Clear unused warnings with MSVC

---
 chacha.cpp   | 2 ++
 poly1305.cpp | 2 +-
 xed25519.cpp | 1 +
 3 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/chacha.cpp b/chacha.cpp
index e16a5008e..dccde3017 100644
--- a/chacha.cpp
+++ b/chacha.cpp
@@ -414,6 +414,7 @@ std::string ChaChaTLS_Policy::AlgorithmProvider() const
 void ChaChaTLS_Policy::CipherSetKey(const NameValuePairs &params, const byte *key, size_t length)
 {
     CRYPTOPP_ASSERT(key); CRYPTOPP_ASSERT(length == 32);
+    CRYPTOPP_UNUSED(length);
 
     // ChaChaTLS is always 20 rounds. Fetch Rounds() to avoid a spurious failure.
     int rounds = params.GetIntValueWithDefault(Name::Rounds(), ROUNDS);
@@ -509,6 +510,7 @@ std::string XChaCha20_Policy::AlgorithmProvider() const
 void XChaCha20_Policy::CipherSetKey(const NameValuePairs &params, const byte *key, size_t length)
 {
     CRYPTOPP_ASSERT(key); CRYPTOPP_ASSERT(length == 32);
+    CRYPTOPP_UNUSED(length);
 
     // Use previous rounds as the default value
     int rounds = params.GetIntValueWithDefault(Name::Rounds(), m_rounds);
diff --git a/poly1305.cpp b/poly1305.cpp
index e22cb7f59..9f3f97aa4 100644
--- a/poly1305.cpp
+++ b/poly1305.cpp
@@ -314,7 +314,7 @@ void Poly1305_Base<T>::Restart()
 
 void Poly1305TLS_Base::UncheckedSetKey(const byte *key, unsigned int length, const NameValuePairs &params)
 {
-	CRYPTOPP_UNUSED(params);
+	CRYPTOPP_UNUSED(params); CRYPTOPP_UNUSED(length);
 	CRYPTOPP_ASSERT(key && length >= 32);
 
 	// key is {r,s} pair. r is the additional key that gets clamped, s is the nonce.
diff --git a/xed25519.cpp b/xed25519.cpp
index 0ab778769..426940501 100644
--- a/xed25519.cpp
+++ b/xed25519.cpp
@@ -870,6 +870,7 @@ bool ed25519Verifier::VerifyAndRestart(PK_MessageAccumulator &messageAccumulator
 bool ed25519Verifier::VerifyStream(std::istream& stream, const byte *signature, size_t signatureLen) const
 {
     CRYPTOPP_ASSERT(signatureLen == SIGNATURE_LENGTH);
+    CRYPTOPP_UNUSED(signatureLen);
 
     const ed25519PublicKey& pk = static_cast<const ed25519PublicKey&>(GetPublicKey());
     int ret = Donna::ed25519_sign_open(stream, pk.GetPublicKeyBytePtr(), signature);