From: David Wells <wellsd2@rpi.edu>
Date: Sat, 9 Jan 2016 20:04:16 +0000 (-0500)
Subject: Use a constant reference for a string.
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=76b2f533413890018a421120bd7cf0bc6edf61a5;p=code-gallery.git

Use a constant reference for a string.
---

diff --git a/cdr/common/include/deal.II-cdr/parameters.h b/cdr/common/include/deal.II-cdr/parameters.h
index ddf2d15..83e21bf 100644
--- a/cdr/common/include/deal.II-cdr/parameters.h
+++ b/cdr/common/include/deal.II-cdr/parameters.h
@@ -36,7 +36,7 @@ namespace CDR
     unsigned int save_interval;
     unsigned int patch_level;
 
-    void read_parameter_file(std::string file_name);
+    void read_parameter_file(const std::string &file_name);
   private:
     void configure_parameter_handler(ParameterHandler &parameter_handler);
   };
diff --git a/cdr/common/source/parameters.cc b/cdr/common/source/parameters.cc
index b5b7fe1..36f606a 100644
--- a/cdr/common/source/parameters.cc
+++ b/cdr/common/source/parameters.cc
@@ -62,7 +62,7 @@ namespace CDR
     parameter_handler.leave_subsection();
   }
 
-  void Parameters::read_parameter_file(std::string file_name)
+  void Parameters::read_parameter_file(const std::string &file_name)
   {
     ParameterHandler parameter_handler;
     {