use const references where appropriate

1 files changed, 5 insertions, 5 deletions

diff --git a/src/rpcserver.h b/src/rpcserver.h
index 3f623651cc..7b462a8b79 100644
--- a/src/rpcserver.h
+++ b/src/rpcserver.h
@@ -55,7 +55,7 @@ void StopRPCThreads();
 /** Query whether RPC is running */
 bool IsRPCRunning();
 
-/** 
+/**
  * Set the RPC warmup status.  When this is done, all RPC calls will error out
  * immediately with RPC_IN_WARMUP.
  */
@@ -110,8 +110,8 @@ private:
     std::map<std::string, const CRPCCommand*> mapCommands;
 public:
     CRPCTable();
-    const CRPCCommand* operator[](std::string name) const;
-    std::string help(std::string name) const;
+    const CRPCCommand* operator[](const std::string& name) const;
+    std::string help(const std::string& name) const;
 
     /**
      * Execute a method.
@@ -142,8 +142,8 @@ extern CAmount AmountFromValue(const UniValue& value);
 extern UniValue ValueFromAmount(const CAmount& amount);
 extern double GetDifficulty(const CBlockIndex* blockindex = NULL);
 extern std::string HelpRequiringPassphrase();
-extern std::string HelpExampleCli(std::string methodname, std::string args);
-extern std::string HelpExampleRpc(std::string methodname, std::string args);
+extern std::string HelpExampleCli(const std::string& methodname, const std::string& args);
+extern std::string HelpExampleRpc(const std::string& methodname, const std::string& args);
 
 extern void EnsureWalletIsUnlocked();