From: Wolfgang Bangerth <bangerth@colostate.edu>
Date: Mon, 3 Jul 2023 16:31:48 +0000 (-0600)
Subject: Micro-optimize a loop.
X-Git-Tag: relicensing~761^2~2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ca2a902db334163b08f9e9bc047ccdca08cdf8d6;p=dealii.git

Micro-optimize a loop.
---

diff --git a/include/deal.II/matrix_free/matrix_free.templates.h b/include/deal.II/matrix_free/matrix_free.templates.h
index b3a243bfb8..b81af3f9b9 100644
--- a/include/deal.II/matrix_free/matrix_free.templates.h
+++ b/include/deal.II/matrix_free/matrix_free.templates.h
@@ -1486,10 +1486,11 @@ namespace internal
         }
     }
 
-    bool hp_functionality_enabled = false;
-    for (const auto &dh : dof_handler)
-      if (dh->get_fe_collection().size() > 1)
-        hp_functionality_enabled = true;
+    const bool hp_functionality_enabled =
+      std::any_of(dof_handler.begin(), dof_handler.end(), [](const auto &dh) {
+        return (dh->get_fe_collection().size() > 1);
+      });
+
     const unsigned int         n_lanes = task_info.vectorization_length;
     std::vector<unsigned int>  renumbering;
     std::vector<unsigned char> irregular_cells;