Modernize code: Call by value and move

Author: joto

src/flex-table.hpp

@@ -64,21 +64,24 @@ class flex_table_t
         return m_index_tablespace;
     }
 
-    void set_schema(std::string const &schema) noexcept { m_schema = schema; }
+    void set_schema(std::string schema) noexcept
+    {
+        m_schema = std::move(schema);
+    }
 
     void set_cluster_by_geom(bool cluster) noexcept
     {
         m_cluster_by_geom = cluster;
     }
 
-    void set_data_tablespace(std::string const &tablespace) noexcept
+    void set_data_tablespace(std::string tablespace) noexcept
     {
-        m_data_tablespace = tablespace;
+        m_data_tablespace = std::move(tablespace);
     }
 
-    void set_index_tablespace(std::string const &tablespace) noexcept
+    void set_index_tablespace(std::string tablespace) noexcept
     {
-        m_index_tablespace = tablespace;
+        m_index_tablespace = std::move(tablespace);
     }
 
     osmium::item_type id_type() const noexcept { return m_id_type; }