Make almost all single argument constructors `explicit`

GH #444

4 files changed, 4 insertions, 4 deletions

diff --git a/src/lib/mac/cbc_mac/cbc_mac.h b/src/lib/mac/cbc_mac/cbc_mac.h
index 06d1dc852..cd2ebd18f 100644
--- a/src/lib/mac/cbc_mac/cbc_mac.h
+++ b/src/lib/mac/cbc_mac/cbc_mac.h
@@ -32,7 +32,7 @@ class BOTAN_DLL CBC_MAC final : public MessageAuthenticationCode
       /**
       * @param cipher the underlying block cipher to use
       */
-      CBC_MAC(BlockCipher* cipher);
+      explicit CBC_MAC(BlockCipher* cipher);
 
       static CBC_MAC* make(const Spec& spec);
    private:
diff --git a/src/lib/mac/cmac/cmac.h b/src/lib/mac/cmac/cmac.h
index 5a38de28d..0e973b79d 100644
--- a/src/lib/mac/cmac/cmac.h
+++ b/src/lib/mac/cmac/cmac.h
@@ -40,7 +40,7 @@ class BOTAN_DLL CMAC final : public MessageAuthenticationCode
       /**
       * @param cipher the underlying block cipher to use
       */
-      CMAC(BlockCipher* cipher);
+      explicit CMAC(BlockCipher* cipher);
 
       static CMAC* make(const Spec& spec);
 
diff --git a/src/lib/mac/hmac/hmac.h b/src/lib/mac/hmac/hmac.h
index 5154739d2..654a167e7 100644
--- a/src/lib/mac/hmac/hmac.h
+++ b/src/lib/mac/hmac/hmac.h
@@ -34,7 +34,7 @@ class BOTAN_DLL HMAC final : public MessageAuthenticationCode
       /**
       * @param hash the hash to use for HMACing
       */
-      HMAC(HashFunction* hash);
+      explicit HMAC(HashFunction* hash);
 
       static HMAC* make(const Spec& spec);
 
diff --git a/src/lib/mac/mac.cpp b/src/lib/mac/mac.cpp
index 8c1185c55..bb5643b59 100644
--- a/src/lib/mac/mac.cpp
+++ b/src/lib/mac/mac.cpp
@@ -38,7 +38,7 @@ namespace Botan {
 std::unique_ptr<MessageAuthenticationCode> MessageAuthenticationCode::create(const std::string& algo_spec,
                                                                              const std::string& provider)
    {
-   return std::unique_ptr<MessageAuthenticationCode>(make_a<MessageAuthenticationCode>(algo_spec, provider));
+   return std::unique_ptr<MessageAuthenticationCode>(make_a<MessageAuthenticationCode>(Botan::MessageAuthenticationCode::Spec(algo_spec), provider));
    }
 
 std::vector<std::string> MessageAuthenticationCode::providers(const std::string& algo_spec)