From e05e3f36a51f12e7e62bcba71e0c9a855b13daea Mon Sep 17 00:00:00 2001
From: David Wells <drwells@email.unc.edu>
Date: Thu, 5 Dec 2019 11:10:23 -0500
Subject: [PATCH] Use a ranged-for loop.

---
 source/base/function_parser.cc | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/source/base/function_parser.cc b/source/base/function_parser.cc
index c9f27cd1b9..7758c114b4 100644
--- a/source/base/function_parser.cc
+++ b/source/base/function_parser.cc
@@ -281,12 +281,9 @@ FunctionParser<dim>::init_muparser() const
     {
       fp.get().emplace_back(new mu::Parser());
 
-      for (std::map<std::string, double>::const_iterator constant =
-             constants.begin();
-           constant != constants.end();
-           ++constant)
+      for (const auto &constant : constants)
         {
-          fp.get()[component]->DefineConst(constant->first, constant->second);
+          fp.get()[component]->DefineConst(constant.first, constant.second);
         }
 
       for (unsigned int iv = 0; iv < var_names.size(); ++iv)
-- 
2.39.5