From 91f3d9fb8afc9ba7b5c1d65efb5c77d189285bd6 Mon Sep 17 00:00:00 2001 From: wolf Date: Mon, 30 Jul 2001 12:07:31 +0000 Subject: [PATCH] Improve docs. git-svn-id: https://svn.dealii.org/trunk@4863 0785d39b-7218-0410-832d-ea1e28bc413d --- .../deal.II/include/dofs/dof_constraints.h | 31 ++++++++++++++----- 1 file changed, 23 insertions(+), 8 deletions(-) diff --git a/deal.II/deal.II/include/dofs/dof_constraints.h b/deal.II/deal.II/include/dofs/dof_constraints.h index 6b78a04660..cd293b1a04 100644 --- a/deal.II/deal.II/include/dofs/dof_constraints.h +++ b/deal.II/deal.II/include/dofs/dof_constraints.h @@ -116,18 +116,33 @@ class ConstraintMatrix : public Subscriptor /** - * Add a new line to the matrix. + * Add a new line to the + * matrix. If the line already + * exists, then the function + * simply returns. */ void add_line (const unsigned int line); /** - * Add an entry to a given line. The list - * of lines is searched from the back to - * the front, so clever programming would - * add a new line (which is pushed to the - * back) and immediately afterwards fill - * the entries of that line. This way, no - * expensive searching is needed. + * Add an entry to a given + * line. The list of lines is + * searched from the back to the + * front, so clever programming + * would add a new line (which is + * pushed to the back) and + * immediately afterwards fill + * the entries of that line. This + * way, no expensive searching is + * needed. + * + * If an entry with the same + * indices as the one this + * function call denotes already + * exists, then this function + * simply returns provided that + * the value of the entry is the + * same. Thus, it does no harm to + * enter a constraint twice. */ void add_entry (const unsigned int line, const unsigned int column, -- 2.39.5