Update include/deal.II/base/utilities.h

Co-Authored-By: Martin Kronbichler <kronbichler@lnm.mw.tum.de>

diff --git a/include/deal.II/base/utilities.h b/include/deal.II/base/utilities.h
index 887576437c79f80124d7823fc0448ec153308250..f064ce980864730d5a37b5fc73166b439fb36d5b 100644 (file)
--- a/include/deal.II/base/utilities.h
+++ b/include/deal.II/base/utilities.h
@@ -1461,7 +1461,7 @@ namespace Utilities
 
     // check that we have actually reached
     // all indices
-    for (unsigned int i = 0; i < n; ++i)
+    for (std::size_t i = 0; i < n; ++i)
       Assert(out[i] != numbers::invalid_unsigned_int,
              ExcMessage("The given input permutation had duplicate entries!"));