From: Wolfgang Bangerth <bangerth@colostate.edu>
Date: Thu, 18 Jan 2018 22:33:04 +0000 (-0700)
Subject: Add small comments.
X-Git-Tag: v9.0.0-rc1~552^2~3
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e0b09ad533fae3172325012444ff627f4a3008a7;p=dealii.git

Add small comments.
---

diff --git a/tests/lac/vector_add_and_dot.cc b/tests/lac/vector_add_and_dot.cc
index bfe935c089..adf634e8b9 100644
--- a/tests/lac/vector_add_and_dot.cc
+++ b/tests/lac/vector_add_and_dot.cc
@@ -38,8 +38,11 @@ void check ()
       check = v1;
       const number factor = 0.01432;
 
+      // do things by hand once
       v1.add(factor, v2);
       const number prod = v1 * v3;
+
+      // then do it a second time with the add_and_dot function
       const number prod_check = check.add_and_dot(factor, v2, v3);
       if (test == 0 && std::is_same<number,double>::value)
         {