From: Wolfgang Bangerth Date: Fri, 31 Mar 2006 15:19:12 +0000 (+0000) Subject: Allow assignment from block vectors to vectors and back. X-Git-Tag: v8.0.0~11923 X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5c79e4d3d4f7e9664d73d0519e5e375985d3a03c;p=dealii.git Allow assignment from block vectors to vectors and back. git-svn-id: https://svn.dealii.org/trunk@12800 0785d39b-7218-0410-832d-ea1e28bc413d --- diff --git a/deal.II/doc/news/changes.html b/deal.II/doc/news/changes.html index 471ad5ee67..5fe39c8aef 100644 --- a/deal.II/doc/news/changes.html +++ b/deal.II/doc/news/changes.html @@ -434,13 +434,20 @@ inconvenience this causes.
    +

  1. New: There are now assignment operators from BlockVector to Vector and back. +
    + (WB 2006/03/30) +

    +

  2. Improved: BlockSparsityPattern can be - initialized directly using the vector generated by - DoFTools::compute_row_length_vector. -
    - (GK 2006/03/30) -

    + initialized directly using the vector generated by + DoFTools::compute_row_length_vector. +
    + (GK 2006/03/30) +

  3. Improved: All matrix (and some vector) classes now check whether diff --git a/deal.II/lac/include/lac/block_vector.h b/deal.II/lac/include/lac/block_vector.h index 495e127337..c90d7675ba 100644 --- a/deal.II/lac/include/lac/block_vector.h +++ b/deal.II/lac/include/lac/block_vector.h @@ -187,7 +187,14 @@ class BlockVector : public BlockVectorBase > BlockVector & operator= (const BlockVector &V); - /** + /** + * Copy a regular vector into a + * block vector. + */ + BlockVector & + operator= (const Vector &V); + + /** * Reinitialize the BlockVector to * contain num_blocks blocks of * size block_size each. @@ -443,6 +450,17 @@ BlockVector::operator = (const BlockVector &v) +template +inline +BlockVector & +BlockVector::operator = (const Vector &v) +{ + BaseClass::operator = (v); + return *this; +} + + + template template inline diff --git a/deal.II/lac/include/lac/block_vector_base.h b/deal.II/lac/include/lac/block_vector_base.h index eb97e4bad4..7e46c5c323 100644 --- a/deal.II/lac/include/lac/block_vector_base.h +++ b/deal.II/lac/include/lac/block_vector_base.h @@ -806,6 +806,13 @@ class BlockVectorBase BlockVectorBase & operator= (const BlockVectorBase &V); + /** + * Copy operator from non-block + * vectors to block vectors. + */ + BlockVectorBase & + operator = (const VectorType &v); + /** * Check for equality of two block vector * types. This operation is only allowed @@ -2067,6 +2074,7 @@ void BlockVectorBase::equ (const value_type a, } + template BlockVectorBase& BlockVectorBase::operator = (const value_type s) @@ -2090,9 +2098,8 @@ BlockVectorBase::operator = (const BlockVectorBase& v) ExcDimensionMismatch(n_blocks(), v.n_blocks())); for (unsigned int i=0;i::operator = (const BlockVectorBase &v) +template +BlockVectorBase& +BlockVectorBase::operator = (const VectorType &v) +{ + Assert (size() == v.size(), + ExcDimensionMismatch(size(), v.size())); + + unsigned int index_v = 0; + for (unsigned int b=0;b template inline diff --git a/deal.II/lac/include/lac/vector.h b/deal.II/lac/include/lac/vector.h index 4f2fcf7912..c02041b365 100644 --- a/deal.II/lac/include/lac/vector.h +++ b/deal.II/lac/include/lac/vector.h @@ -34,6 +34,10 @@ namespace PETScWrappers template class LAPACKFullMatrix; +template class BlockVector; + + + /*! @addtogroup Vectors *@{ */ @@ -307,6 +311,13 @@ class Vector : template Vector & operator= (const Vector &v); + /** + * Copy operator for assigning a + * block vector to a regular + * vector. + */ + Vector & operator= (const BlockVector &v); + #ifdef DEAL_II_USE_PETSC /** * Another copy operator: copy the values diff --git a/deal.II/lac/include/lac/vector.templates.h b/deal.II/lac/include/lac/vector.templates.h index dc188728ae..887c02bafb 100644 --- a/deal.II/lac/include/lac/vector.templates.h +++ b/deal.II/lac/include/lac/vector.templates.h @@ -15,6 +15,7 @@ #include +#include #ifdef DEAL_II_USE_PETSC # include @@ -672,7 +673,7 @@ void Vector::ratio (const Vector &a, const Vector &b) template -Vector& +Vector & Vector::operator = (const Vector& v) { if (v.vec_size != vec_size) @@ -687,7 +688,7 @@ Vector::operator = (const Vector& v) template template -Vector& +Vector & Vector::operator = (const Vector& v) { if (v.size() != vec_size) @@ -700,6 +701,23 @@ Vector::operator = (const Vector& v) +template +Vector & +Vector::operator = (const BlockVector& v) +{ + if (v.size() != vec_size) + reinit (v.size(), true); + + unsigned int this_index = 0; + for (unsigned int b=0; b diff --git a/tests/lac/Makefile b/tests/lac/Makefile index beaca1e4f3..91fe46527d 100644 --- a/tests/lac/Makefile +++ b/tests/lac/Makefile @@ -24,10 +24,11 @@ tests_x = vector-vector \ full_matrix householder tridiagonal_matrix \ sparsity_pattern sparse_matrices matrices \ block_sparsity_pattern_01 \ - block_vector block_vector_iterator block_matrices \ + block_vector block_vector_* block_matrices \ matrix_lib matrix_out \ solver eigen \ - sparse_ilu sparse_ilu_t lapack lapack_fill block_minres + sparse_ilu sparse_ilu_t lapack lapack_fill block_minres \ + amg_* # from above list of regular expressions, generate the real set of diff --git a/tests/lac/block_vector_vector_assign.cc b/tests/lac/block_vector_vector_assign.cc new file mode 100644 index 0000000000..032de9f8d6 --- /dev/null +++ b/tests/lac/block_vector_vector_assign.cc @@ -0,0 +1,110 @@ +//-------------------------------------------------------------------- +// $Id$ +// Version: $Name$ +// +// Copyright (C) 2006 by the deal.II authors +// +// This file is subject to QPL and may not be distributed +// without copyright and license information. Please refer +// to the file deal.II/doc/license.html for the text and +// further information on this license. +// +//-------------------------------------------------------------------- + +// check assignment between block vectors and regular vectors + +#include "../tests.h" +#include +#include +#include +#include +#include +#include +#include +#include +#include + +template +bool operator == (const Vector1 &v1, + const Vector2 &v2) +{ + if (v1.size() != v2.size()) + return false; + for (unsigned int i=0; i ivector(4); + ivector[0] = 2; + ivector[1] = 4; + ivector[2] = 3; + ivector[3] = 5; + + BlockVector v1(ivector); + Vector v2(v1.size()); + + for (unsigned int i=0; i v3 (ivector); + v3 = v2; + Assert (v3==v2, ExcInternalError()); + Assert (v3==v1, ExcInternalError()); + + deallog << "OK" << std::endl; +} + + + + + +int main () +{ + std::ofstream logfile("block_vector_vector_assign/output"); + logfile.setf(std::ios::fixed); + logfile.precision(3); + deallog.attach(logfile); + deallog.depth_console(0); + deallog.threshold_double(1.e-10); + + try + { + test (); + } + catch (std::exception &e) + { + std::cerr << std::endl << std::endl + << "----------------------------------------------------" + << std::endl; + std::cerr << "Exception on processing: " << e.what() << std::endl + << "Aborting!" << std::endl + << "----------------------------------------------------" + << std::endl; + // abort + return 2; + } + catch (...) + { + std::cerr << std::endl << std::endl + << "----------------------------------------------------" + << std::endl; + std::cerr << "Unknown exception!" << std::endl + << "Aborting!" << std::endl + << "----------------------------------------------------" + << std::endl; + // abort + return 3; + }; + + + return 0; +} + diff --git a/tests/lac/block_vector_vector_assign/cmp/generic b/tests/lac/block_vector_vector_assign/cmp/generic new file mode 100644 index 0000000000..0fd8fc12f0 --- /dev/null +++ b/tests/lac/block_vector_vector_assign/cmp/generic @@ -0,0 +1,2 @@ + +DEAL::OK