Parameter is passed by reference, not by value

diff --git a/src/host/pingprotocol.cpp b/src/host/pingprotocol.cpp
index 1c59131..da5fd43 100644 (file)
--- a/src/host/pingprotocol.cpp
+++ b/src/host/pingprotocol.cpp
@@ -29,7 +29,7 @@ using namespace std;
 
 map<string, PingProtocol> protocol_string_map;
 
-PingProtocol get_ping_protocol_from_string( const string protocol_string )
+PingProtocol get_ping_protocol_from_string( const string & protocol_string )
 {
     BOOST_ASSERT( !protocol_string.empty() );
 

diff --git a/src/host/pingprotocol.h b/src/host/pingprotocol.h
index c7bd370..4fc4b31 100644 (file)
--- a/src/host/pingprotocol.h
+++ b/src/host/pingprotocol.h
@@ -31,6 +31,6 @@ enum PingProtocol
     PingProtocol_Last = PingProtocol_TCP
 };
 
-PingProtocol get_ping_protocol_from_string( const std::string protocol_string );
+PingProtocol get_ping_protocol_from_string( const std::string & protocol_string );
 
 #endif // PING_PROTOCOL_H