3 files changed, 3 insertions, 11 deletions
diff --git a/tests/fuzz/bulletproof.cpp b/tests/fuzz/bulletproof.cpp
index e0f183bc5..06416fe34 100644
--- a/tests/fuzz/bulletproof.cpp
+++ b/tests/fuzz/bulletproof.cpp
@@ -37,9 +37,7 @@ BEGIN_INIT_SIMPLE_FUZZER()
 END_INIT_SIMPLE_FUZZER()
 
 BEGIN_SIMPLE_FUZZER()
-  std::stringstream ss;
-  ss << std::string((const char*)buf, len);
-  binary_archive<false> ba(ss);
+  binary_archive<false> ba{{buf, len}};
   rct::Bulletproof proof = AUTO_VAL_INIT(proof);
   ::serialization::serialize(ba, proof);
 END_SIMPLE_FUZZER()
diff --git a/tests/fuzz/cold-outputs.cpp b/tests/fuzz/cold-outputs.cpp
index bd298eb71..69eb7b61f 100644
--- a/tests/fuzz/cold-outputs.cpp
+++ b/tests/fuzz/cold-outputs.cpp
@@ -50,11 +50,8 @@ BEGIN_INIT_SIMPLE_FUZZER()
 END_INIT_SIMPLE_FUZZER()
 
 BEGIN_SIMPLE_FUZZER()
-  std::string s((const char*)buf, len);
   std::pair<uint64_t, std::vector<tools::wallet2::transfer_details>> outputs;
-  std::stringstream iss;
-  iss << s;
-  binary_archive<false> ar(iss);
+  binary_archive<false> ar{{buf, len}};
   ::serialization::serialize(ar, outputs);
   size_t n_outputs = wallet->import_outputs(outputs);
   std::cout << boost::lexical_cast<std::string>(n_outputs) << " outputs imported" << std::endl;
diff --git a/tests/fuzz/cold-transaction.cpp b/tests/fuzz/cold-transaction.cpp
index 135343704..bf5fba1f7 100644
--- a/tests/fuzz/cold-transaction.cpp
+++ b/tests/fuzz/cold-transaction.cpp
@@ -50,11 +50,8 @@ BEGIN_INIT_SIMPLE_FUZZER()
 END_INIT_SIMPLE_FUZZER()
 
 BEGIN_SIMPLE_FUZZER()
-  std::string s((const char*)buf, len);
   tools::wallet2::unsigned_tx_set exported_txs;
-  std::stringstream iss;
-  iss << s;
-  binary_archive<false> ar(iss);
+  binary_archive<false> ar{{buf, len}};
   ::serialization::serialize(ar, exported_txs);
   std::vector<tools::wallet2::pending_tx> ptx;
   bool success = wallet->sign_tx(exported_txs, "/tmp/cold-transaction-test-signed", ptx);