Make the constructor explicit.

git-svn-id: https://svn.dealii.org/trunk@13017 0785d39b-7218-0410-832d-ea1e28bc413d

diff --git a/deal.II/base/include/base/quadrature.h b/deal.II/base/include/base/quadrature.h
index 513f0840536aaa5e471e63ea2d2ca42f8093f370..f11238ea4995cc4cc7d1c7c79ad1077d0bc1e555 100644 (file)
--- a/deal.II/base/include/base/quadrature.h
+++ b/deal.II/base/include/base/quadrature.h
@@ -98,8 +98,17 @@ class Quadrature : public Subscriptor
 
                                     /**
                                      * Constructor.
+                                     *
+                                     * This constructor is marked as
+                                     * explicit to avoid involuntary
+                                     * accidents like in
+                                     * <code>hp::QCollection@<dim@>
+                                     * q_collection(3)</code> where
+                                     * <code>hp::QCollection@<dim@>
+                                     * q_collection(QGauss@<dim@>(3))</code>
+                                     * was meant.
                                      */
-    Quadrature (const unsigned int n_quadrature_points);
+    explicit Quadrature (const unsigned int n_quadrature_points);
 
                                     /**
                                      * Build this quadrature formula