Reduced string operations when searching for JSON node names

Author: EmilianC

include/cereal/archives/json.hpp

@@ -539,13 +539,11 @@ namespace cereal
           /*! @throws Exception if no such named node exists */
           inline void search( const char * searchName )
           {
-            const auto len = std::strlen( searchName );
             size_t index = 0;
             for( auto it = itsMemberItBegin; it != itsMemberItEnd; ++it, ++index )
             {
               const auto currentName = it->name.GetString();
-              if( ( std::strncmp( searchName, currentName, len ) == 0 ) &&
-                  ( std::strlen( currentName ) == len ) )
+              if( std::strcmp( searchName, currentName, len ) == 0 )
               {
                 itsIndex = index;
                 return;