From 4242b7593b5aae2b2d1483fcc7ff002c1deeb956 Mon Sep 17 00:00:00 2001
From: Daniel Neus <daniel@neus-online.eu>
Date: Mon, 8 Feb 2016 21:01:11 +0100
Subject: V816 It is more efficient to catch exception by reference rather than
 by value. asn1_time.cpp 159

---
 src/lib/asn1/asn1_time.cpp         | 4 ++--
 src/lib/pbkdf/pbkdf2/pbkdf2.cpp    | 2 +-
 src/lib/pubkey/keypair/keypair.cpp | 2 +-
 src/lib/pubkey/mceies/mceies.cpp   | 2 +-
 src/lib/pubkey/pk_keys.cpp         | 2 +-
 src/lib/pubkey/pubkey.cpp          | 2 +-
 src/tests/test_x509_path.cpp       | 2 +-
 7 files changed, 8 insertions(+), 8 deletions(-)

(limited to 'src')

diff --git a/src/lib/asn1/asn1_time.cpp b/src/lib/asn1/asn1_time.cpp
index a9dffa95c..67fc8b5ac 100644
--- a/src/lib/asn1/asn1_time.cpp
+++ b/src/lib/asn1/asn1_time.cpp
@@ -149,14 +149,14 @@ void X509_Time::set_to(const std::string& t_spec, ASN1_Tag spec_tag)
          set_to(t_spec, GENERALIZED_TIME);
          return;
          }
-      catch(Invalid_Argument) {} // Not a generalized time. Continue
+      catch(Invalid_Argument&) {} // Not a generalized time. Continue
 
       try
          {
          set_to(t_spec, UTC_TIME);
          return;
          }
-      catch(Invalid_Argument) {} // Not a UTC time. Continue
+      catch(Invalid_Argument&) {} // Not a UTC time. Continue
 
       throw Invalid_Argument("Time string could not be parsed as GeneralizedTime or UTCTime.");
       }
diff --git a/src/lib/pbkdf/pbkdf2/pbkdf2.cpp b/src/lib/pbkdf/pbkdf2/pbkdf2.cpp
index 94c587f05..5a8f529c6 100644
--- a/src/lib/pbkdf/pbkdf2/pbkdf2.cpp
+++ b/src/lib/pbkdf/pbkdf2/pbkdf2.cpp
@@ -40,7 +40,7 @@ pbkdf2(MessageAuthenticationCode& prf,
       {
       prf.set_key(reinterpret_cast<const byte*>(passphrase.data()), passphrase.size());
       }
-   catch(Invalid_Key_Length)
+   catch(Invalid_Key_Length&)
       {
       throw Exception("PBKDF2 with " + prf.name() +
                                " cannot accept passphrases of length " +
diff --git a/src/lib/pubkey/keypair/keypair.cpp b/src/lib/pubkey/keypair/keypair.cpp
index ef211ffd4..0f5a48541 100644
--- a/src/lib/pubkey/keypair/keypair.cpp
+++ b/src/lib/pubkey/keypair/keypair.cpp
@@ -59,7 +59,7 @@ bool signature_consistency_check(RandomNumberGenerator& rng,
       {
       signature = signer.sign_message(message, rng);
       }
-   catch(Encoding_Error)
+   catch(Encoding_Error&)
       {
       return false;
       }
diff --git a/src/lib/pubkey/mceies/mceies.cpp b/src/lib/pubkey/mceies/mceies.cpp
index 0af71719a..95042e529 100644
--- a/src/lib/pubkey/mceies/mceies.cpp
+++ b/src/lib/pubkey/mceies/mceies.cpp
@@ -98,7 +98,7 @@ mceies_decrypt(const McEliece_PrivateKey& privkey,
       aead->finish(pt, 0);
       return pt;
       }
-   catch(Integrity_Failure)
+   catch(Integrity_Failure&)
       {
       throw;
       }
diff --git a/src/lib/pubkey/pk_keys.cpp b/src/lib/pubkey/pk_keys.cpp
index 635934037..ebaa0eb69 100644
--- a/src/lib/pubkey/pk_keys.cpp
+++ b/src/lib/pubkey/pk_keys.cpp
@@ -19,7 +19,7 @@ OID Public_Key::get_oid() const
    try {
       return OIDS::lookup(algo_name());
       }
-   catch(Lookup_Error)
+   catch(Lookup_Error&)
       {
       throw Lookup_Error("PK algo " + algo_name() + " has no defined OIDs");
       }
diff --git a/src/lib/pubkey/pubkey.cpp b/src/lib/pubkey/pubkey.cpp
index 37408272a..d3b711f1e 100644
--- a/src/lib/pubkey/pubkey.cpp
+++ b/src/lib/pubkey/pubkey.cpp
@@ -231,7 +231,7 @@ bool PK_Verifier::check_signature(const byte sig[], size_t length)
          throw Decoding_Error("PK_Verifier: Unknown signature format " +
                               std::to_string(m_sig_format));
       }
-   catch(Invalid_Argument) { return false; }
+   catch(Invalid_Argument&) { return false; }
    }
 
 }
diff --git a/src/tests/test_x509_path.cpp b/src/tests/test_x509_path.cpp
index 9bdf3721a..7e2039ab4 100644
--- a/src/tests/test_x509_path.cpp
+++ b/src/tests/test_x509_path.cpp
@@ -145,7 +145,7 @@ std::vector<Test::Result> NIST_Path_Validation_Tests::run()
       // Do nothing, just test filesystem access
       Botan::get_files_recursive(nist_test_dir);
       }
-   catch(Botan::No_Filesystem_Access)
+   catch(Botan::No_Filesystem_Access&)
       {
       Test::Result result("NIST path validation");
       result.test_note("Skipping due to missing filesystem access");
-- 
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