[Boost-commit] svn:boost r80590 - branches/release/libs/numeric/ublas/test

Subject: [Boost-commit] svn:boost r80590 - branches/release/libs/numeric/ublas/test
From: guwi17_at_[hidden]
Date: 2012-09-18 17:14:33

Author: guwi17
Date: 2012-09-18 17:14:33 EDT (Tue, 18 Sep 2012)
New Revision: 80590
URL: http://svn.boost.org/trac/boost/changeset/80590

Log:

* add missing test from [80588], see #4024

Added:
   branches/release/libs/numeric/ublas/test/test_inplace_solve.cpp   (contents, props changed)

Added: branches/release/libs/numeric/ublas/test/test_inplace_solve.cpp
==============================================================================
--- (empty file)
+++ branches/release/libs/numeric/ublas/test/test_inplace_solve.cpp	2012-09-18 17:14:33 EDT (Tue, 18 Sep 2012)
@@ -0,0 +1,123 @@
+#include <iostream>
+
+#include <boost/numeric/ublas/vector.hpp>
+#include <boost/numeric/ublas/matrix.hpp>
+#include <boost/numeric/ublas/matrix_sparse.hpp>
+#include <boost/numeric/ublas/triangular.hpp>
+#include <boost/numeric/ublas/io.hpp>
+
+#include "utils.hpp"
+
+namespace ublas  = boost::numeric::ublas;
+
+static const double TOL(1.0e-5); ///< Used for comparing two real numbers.
+static const int n(10);           ///< defines the test matrix size
+
+template<class mat, class vec>
+double diff(const mat& A, const vec& x, const vec& b) {
+  return ublas::norm_2(prod(A, x) - b);
+}
+
+// efficiently fill matrix depending on majority
+template<class mat>
+void fill_matrix(mat& A, ublas::column_major_tag) {
+  for (int i=0; i<n; ++i) {
+    if (i-1>=0) {
+      A(i-1, i) = -1;
+    }
+    A(i, i) = 1;
+    if (i+1<n) {
+      A(i+1, i) = -2;
+    }
+  }
+}
+template<class mat>
+void fill_matrix(mat& A, ublas::row_major_tag) {
+  for (int i=0; i<n; ++i) {
+    if (i-1>=0) {
+      A(i, i-1) = -1;
+    }
+    A(i, i) = 1;
+    if (i+1<n) {
+      A(i, i+1) = -2;
+    }
+  }
+}
+
+template<class mat>
+BOOST_UBLAS_TEST_DEF ( test_inplace_solve )
+{
+  mat A(n, n);
+  A.clear();
+  fill_matrix(A, typename mat::orientation_category());
+
+  ublas::vector<double>  b(n, 1.0);
+
+  // The test matrix is not triangular, but is interpreted that way by
+  // inplace_solve using the lower_tag/upper_tags. For checking, the
+  // triangular_adaptor makes A triangular for comparison.
+  {
+    ublas::vector<double>  x(b);
+    ublas::inplace_solve(A, x, ublas::lower_tag());
+    BOOST_UBLAS_TEST_CHECK(diff(ublas::triangular_adaptor<mat, ublas::lower>(A), x, b) < TOL);
+  }
+  {
+    ublas::vector<double>  x(b);
+    ublas::inplace_solve(A, x, ublas::upper_tag());
+    BOOST_UBLAS_TEST_CHECK(diff (ublas::triangular_adaptor<mat, ublas::upper>(A), x, b) < TOL);
+  }
+  {
+    ublas::vector<double>  x(b);
+    ublas::inplace_solve(x, A, ublas::lower_tag());
+    BOOST_UBLAS_TEST_CHECK(diff (trans(ublas::triangular_adaptor<mat, ublas::lower>(A)), x, b) < TOL);
+  }
+  {
+    ublas::vector<double>  x(b);
+    ublas::inplace_solve(x, A, ublas::upper_tag());
+    BOOST_UBLAS_TEST_CHECK(diff (trans(ublas::triangular_adaptor<mat, ublas::upper>(A)), x , b) < TOL);
+  }
+}
+
+int main() {
+
+  // typedefs are needed as macros do not work with "," in template arguments
+  typedef ublas::compressed_matrix<double, ublas::row_major>     commat_doub_rowmaj;
+  typedef ublas::compressed_matrix<double, ublas::column_major>  commat_doub_colmaj;
+  typedef ublas::matrix<double, ublas::row_major>                mat_doub_rowmaj;
+  typedef ublas::matrix<double, ublas::column_major>             mat_doub_colmaj;
+  typedef ublas::mapped_matrix<double, ublas::row_major>         mapmat_doub_rowmaj;
+  typedef ublas::mapped_matrix<double, ublas::column_major>      mapmat_doub_colmaj;
+  typedef ublas::coordinate_matrix<double, ublas::row_major>     cormat_doub_rowmaj;
+  typedef ublas::coordinate_matrix<double, ublas::column_major>  cormat_doub_colmaj;
+  typedef ublas::mapped_vector_of_mapped_vector<double, ublas::row_major> mvmv_doub_rowmaj;
+  typedef ublas::mapped_vector_of_mapped_vector<double, ublas::column_major> mvmv_doub_colmaj;
+
+  BOOST_UBLAS_TEST_BEGIN();
+
+#ifdef USE_MATRIX
+  BOOST_UBLAS_TEST_DO( test_inplace_solve<mat_doub_rowmaj> );
+  BOOST_UBLAS_TEST_DO( test_inplace_solve<mat_doub_colmaj> );
+#endif
+
+#ifdef USE_COMPRESSED_MATRIX
+  BOOST_UBLAS_TEST_DO( test_inplace_solve<commat_doub_rowmaj> );
+  BOOST_UBLAS_TEST_DO( test_inplace_solve<commat_doub_colmaj> );
+#endif
+
+#ifdef USE_MAPPED_MATRIX
+  BOOST_UBLAS_TEST_DO( test_inplace_solve<mapmat_doub_rowmaj> );
+  BOOST_UBLAS_TEST_DO( test_inplace_solve<mapmat_doub_colmaj> );
+#endif
+
+#ifdef USE_COORDINATE_MATRIX
+  BOOST_UBLAS_TEST_DO( test_inplace_solve<cormat_doub_rowmaj> );
+  BOOST_UBLAS_TEST_DO( test_inplace_solve<cormat_doub_colmaj> );
+#endif
+
+#ifdef USE_MAPPED_VECTOR_OF_MAPPED_VECTOR
+  BOOST_UBLAS_TEST_DO( test_inplace_solve<mvmv_doub_rowmaj> );
+  BOOST_UBLAS_TEST_DO( test_inplace_solve<mvmv_doub_colmaj> );
+#endif
+
+  BOOST_UBLAS_TEST_END();
+}