From: Wolfgang Bangerth <bangerth@math.tamu.edu>
Date: Mon, 7 May 2001 16:43:58 +0000 (+0000)
Subject: Function to query the size of a block.
X-Git-Tag: v8.0.0~19238
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fe46032a84abfa4bacb635644a4d3bb0ccb8fb02;p=dealii.git

Function to query the size of a block.


git-svn-id: https://svn.dealii.org/trunk@4552 0785d39b-7218-0410-832d-ea1e28bc413d
---

diff --git a/deal.II/lac/include/lac/block_indices.h b/deal.II/lac/include/lac/block_indices.h
index c24528f541..8b9e830248 100644
--- a/deal.II/lac/include/lac/block_indices.h
+++ b/deal.II/lac/include/lac/block_indices.h
@@ -99,6 +99,12 @@ class BlockIndices
 				      */
     unsigned int total_size () const;
 
+				     /**
+				      * Return the size of the @p{i}th
+				      * block.
+				      */
+    unsigned int block_size (const unsigned int i) const
+      
 				     /**
 				      * Copy operator.
 				      */
@@ -148,8 +154,9 @@ class BlockIndices
 
 inline
 BlockIndices::BlockIndices (unsigned int n_blocks)
-  : n_blocks(n_blocks),
-    start_indices(n_blocks+1)
+		:
+		n_blocks(n_blocks),
+		start_indices(n_blocks+1)
 {
   for (unsigned int i=0; i<=n_blocks; ++i)
     start_indices[i] = 0;
@@ -159,8 +166,9 @@ BlockIndices::BlockIndices (unsigned int n_blocks)
 
 inline
 BlockIndices::BlockIndices (const std::vector<unsigned int> &n)
-  : n_blocks(n.size()),
-    start_indices(n.size()+1)
+		:
+		n_blocks(n.size()),
+		start_indices(n.size()+1)
 {
   reinit (n);
 };
@@ -239,6 +247,16 @@ BlockIndices::total_size () const
 
 
 
+inline
+unsigned int
+BlockIndices::block_size (const unsigned int block) const
+{
+  Assert (block < n_blocks, ExcIndexRange(block, 0, n_blocks));
+  return start_indices[block+1]-start_indices[block];
+};
+
+
+
 inline
 BlockIndices &
 BlockIndices::operator = (const BlockIndices &b)