From: Lei Qiao Date: Thu, 13 Aug 2015 04:07:53 +0000 (-0500) Subject: add test for SparseMatrixEZ<>.set() X-Git-Tag: v8.4.0-rc2~564^2 X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c2eebd6eadfeeda894a250c005e032d0d069bc86;p=dealii.git add test for SparseMatrixEZ<>.set() --- diff --git a/tests/lac/sparse_matrix_ez_00.cc b/tests/lac/sparse_matrix_ez_00.cc new file mode 100644 index 0000000000..76e1922569 --- /dev/null +++ b/tests/lac/sparse_matrix_ez_00.cc @@ -0,0 +1,97 @@ +// --------------------------------------------------------------------- +// +// Copyright (C) 2015 by the deal.II authors +// +// This file is part of the deal.II library. +// +// The deal.II library is free software; you can use it, redistribute +// it, and/or modify it under the terms of the GNU Lesser General +// Public License as published by the Free Software Foundation; either +// version 2.1 of the License, or (at your option) any later version. +// The full text of the license can be found in the file LICENSE at +// the top level of the deal.II distribution. +// +// --------------------------------------------------------------------- + + +// Test SparseMatrixEZ class's behavior on inserting zero entry and the +// elide_zero_values flag. + +#include "../tests.h" +#include + +#define NUMBER double + +int main(int argc, char *argv[]) +{ + SparseMatrixEZ m_ez(5,5,3); + + std::ofstream logfile("output"); + // Not use because SparseMatrixEZ has no interface with LogStream either with + // function .print() or operator << + + // Initialize the matrix + m_ez.set(0,0,1); + + m_ez.set(1,0,2); + m_ez.set(1,1,3); + + // The third row is filled to default length + m_ez.set(2,0,7); + m_ez.set(2,1,6.18); + m_ez.set(2,2,3.14); + + // Put a non-zero at end of forth row's default length + m_ez.set(3,2,2.718); + + // Fifth row is left empty + + //------------------------ + + logfile << "The initial matrix:" << std::endl; + m_ez.print(logfile); + + m_ez.set(0,1,0.0); + logfile << "Ignore a zero entry insertion:" << std::endl; + m_ez.print(logfile); + + m_ez.set(1,0,0.0); + logfile << "Set existing entry (1,0) to zero:" << std::endl; + m_ez.print(logfile); + + m_ez.set(1,2,0.0, /*elide_zero_values=*/false); + logfile << "Insert new zero to (1,2):" << std::endl; + m_ez.print(logfile); + + m_ez.set(2,4,0.0, /*elide_zero_values=*/false); + logfile << "Insert new zero to (2,4), out of range of default row length:" << std::endl; + m_ez.print(logfile); + + m_ez.set(2,1,0.0, /*elide_zero_values=*/false); + logfile << "Set existing entry (2,1) to zero with elide_zero_values=false:" << std::endl; + m_ez.print(logfile); + + m_ez.set(3,0,1.414, /*elide_zero_values=*/false); + logfile << "Insert a non-zero entry at (3,0) with elide_zero_values=false:" << std::endl; + m_ez.print(logfile); + + m_ez.set(4,4,0.0, /*elide_zero_values=*/false); + logfile << "Insert new zero entry to an empty row with elide_zero_values=false:" << std::endl; + m_ez.print(logfile); + + { + SparseMatrixEZ m_ez_cpoier(5,5,2); + m_ez_cpoier.copy_from(m_ez); + logfile << "Copy the matrix and drop all zeros:" << std::endl; + m_ez_cpoier.print(logfile); + } + { + SparseMatrixEZ m_ez_cpoier(5,5,2); + m_ez_cpoier.copy_from(m_ez, /*elide_zero_values=*/false); + logfile << "Copy the matrix and keep all zeros:" << std::endl; + m_ez_cpoier.print(logfile); + } + + logfile.close(); + return (0); +} diff --git a/tests/lac/sparse_matrix_ez_00.output b/tests/lac/sparse_matrix_ez_00.output new file mode 100644 index 0000000000..105d1b3565 --- /dev/null +++ b/tests/lac/sparse_matrix_ez_00.output @@ -0,0 +1,95 @@ +The initial matrix: +0 0 1 +1 0 2 +1 1 3 +2 0 7 +2 1 6.18 +2 2 3.14 +3 2 2.718 +Ignore a zero entry insertion: +0 0 1 +1 0 2 +1 1 3 +2 0 7 +2 1 6.18 +2 2 3.14 +3 2 2.718 +Set existing entry (1,0) to zero: +0 0 1 +1 0 0 +1 1 3 +2 0 7 +2 1 6.18 +2 2 3.14 +3 2 2.718 +Insert new zero to (1,2): +0 0 1 +1 0 0 +1 1 3 +1 2 0 +2 0 7 +2 1 6.18 +2 2 3.14 +3 2 2.718 +Insert new zero to (2,4), out of range of default row length: +0 0 1 +1 0 0 +1 1 3 +1 2 0 +2 0 7 +2 1 6.18 +2 2 3.14 +2 4 0 +3 2 2.718 +Set existing entry (2,1) to zero with elide_zero_values=false: +0 0 1 +1 0 0 +1 1 3 +1 2 0 +2 0 7 +2 1 0 +2 2 3.14 +2 4 0 +3 2 2.718 +Insert a non-zero entry at (3,0) with elide_zero_values=false: +0 0 1 +1 0 0 +1 1 3 +1 2 0 +2 0 7 +2 1 0 +2 2 3.14 +2 4 0 +3 0 1.414 +3 2 2.718 +Insert new zero entry to an empty row with elide_zero_values=false: +0 0 1 +1 0 0 +1 1 3 +1 2 0 +2 0 7 +2 1 0 +2 2 3.14 +2 4 0 +3 0 1.414 +3 2 2.718 +4 4 0 +Copy the matrix and drop all zeros: +0 0 1 +1 1 3 +2 0 7 +2 2 3.14 +3 0 1.414 +3 2 2.718 +Copy the matrix and keep all zeros: +0 0 1 +1 0 0 +1 1 3 +1 2 0 +2 0 7 +2 1 0 +2 2 3.14 +2 4 0 +3 0 1.414 +3 2 2.718 +4 4 0