From: Matthias Maier <tamiko@43-1.org>
Date: Fri, 15 Jun 2018 19:15:38 +0000 (-0500)
Subject: AffineConstraints: Improve wording and add a note
X-Git-Tag: v9.1.0-rc1~1025^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F6772%2Fhead;p=dealii.git

AffineConstraints: Improve wording and add a note
---

diff --git a/include/deal.II/lac/affine_constraints.h b/include/deal.II/lac/affine_constraints.h
index 6b10a5fee8..dd92453904 100644
--- a/include/deal.II/lac/affine_constraints.h
+++ b/include/deal.II/lac/affine_constraints.h
@@ -60,9 +60,13 @@ class AffineConstraints;
  * ConstraintMatrix has been renamed to AffineConstraints. Provide a
  * compatibility typedef that defaults to AffineConstraints<double>.
  *
- * @deprecated Use AffineConstraints
+ * @deprecated Use AffineConstraints<double> instead of ConstraintMatrix
  */
 using ConstraintMatrix = AffineConstraints<double>;
+// Note: Unfortunately, we cannot move this compatibility typedef into
+// constraint_matrix.h directly. This would break a lot of user projects
+// that include constraint_matrix.h transitively due to various deal.II
+// headers that include the file.
 
 
 // TODO[WB]: We should have a function of the kind