stream any size of matrix

debian/control.in

@@ -1,7 +1,7 @@
 Source: @PACKAGE_NAME@
 Priority: extra
 Maintainer: @AUTHOR@
-Build-Depends: debhelper, subversion, pkg-config, automake, libtool, autotools-dev, lsb-release , doxygen, graphviz, mscgen, libcppunit-dev
+Build-Depends: debhelper, subversion, pkg-config, automake, libtool, autotools-dev, lsb-release , doxygen, graphviz, mscgen, libcppunit-dev, g++
 
 Package: @PACKAGE_NAME@
 Section: libs

src/makefile.am

@@ -10,4 +10,8 @@
 
 include_HEADERS = matrix.hxx
 
+lib_LTLIBRARIES = libmatricxx.la
+
+libmatricxx_la_SOURCES = version.cxx
+
 MAINTAINERCLEANFILES = makefile.in

src/matrix.hxx

@@ -52,13 +52,13 @@ namespace math {
 
 template<typename TYPE, typename ARRAY=TYPE*> class MatrixBase {
 
-    //..............................................................constants
+    //..............................................................variables
-  public:
+  protected:
 
-    const size_t ROWS;
+    size_t ROWS;
-    const size_t COLUMNS;
+    size_t COLUMNS;
-    const size_t SIZE;
+    size_t SIZE;
-    const size_t MEM_SIZE;
+    size_t MEM_SIZE;
 
     //...............................................................typedefs
   public:
@@ -157,6 +157,14 @@ template<typename TYPE, typename ARRAY=TYPE*> class MatrixBase {
       return ConstRowVector(*this, (TYPE*)_c+row*COLUMNS);
     }
 
+    size_t rows() const {
+      return ROWS;
+    }
+
+    size_t columns() const {
+      return COLUMNS;
+    }
+
     ///}
 
     /// @name operators
@@ -511,6 +519,19 @@ template<typename TYPE> class Matrix<TYPE, 0, 0>: public MatrixBase<TYPE> {
     ///@name special operations
     ///{
 
+    Matrix& resize(size_t rows, size_t columns) {
+      if (rows!=this->ROWS||columns!=this->COLUMNS) {
+        delete Parent::_c;
+        Parent::_c = new TYPE[rows*columns];
+        this->ROWS = rows;
+        this->COLUMNS = columns;
+        this->SIZE = rows*columns;
+        this->MEM_SIZE = sizeof(TYPE)*rows*columns;
+      }
+      memset(Parent::_c, 0, Parent::MEM_SIZE);
+      return *this;
+    }
+
     Matrix& apply(std::function<void(TYPE&)> fn) {
       Parent::apply(fn);
       return *this;
@@ -661,9 +682,9 @@ template<typename TYPE, size_t ROWS, size_t COLUMNS>
 
 template<typename TYPE, size_t ROWS, size_t COLUMNS>
     std::ostream& operator<<(std::ostream& s, const Matrix<TYPE, ROWS, COLUMNS>& m) {
-  s<<'['<<ROWS<<'x'<<COLUMNS<<"]{";
+  s<<'['<<m.rows()<<'x'<<m.columns()<<"]{";
-  for (size_t row = 0; row < m.ROWS; ++row) {
+  for (size_t row = 0; row < m.rows(); ++row) {
-    for (size_t column = 0; column < m.COLUMNS; ++column) {
+    for (size_t column = 0; column < m.columns(); ++column) {
       if (row!=0||column!=0) s<<',';
       s<<m(row, column);
     }
@@ -679,12 +700,37 @@ template<typename TYPE, size_t ROWS, size_t COLUMNS>
   TYPE val(0);
   std::string s;
   if (!in.get(c) || c!='[') throw err;
-  if (!std::getline(in, s, 'x') || !(std::stringstream(s)>>sz) || sz!=m.ROWS) throw err;
+  if (!std::getline(in, s, 'x') || !(std::stringstream(s)>>sz) || sz!=m.rows()) throw err;
-  if (!std::getline(in, s, ']') || !(std::stringstream(s)>>sz) || sz!=m.COLUMNS) throw err;
+  if (!std::getline(in, s, ']') || !(std::stringstream(s)>>sz) || sz!=m.columns()) throw err;
+  if (!in.get(c) || c!='{') throw err;
+  for (size_t row = 0; row < m.rows(); ++row) {
+    for (size_t column = 0; column < m.columns(); ++column) {
+      if (row==m.rows()-1&&column==m.columns()-1) {
+        if (!std::getline(in, s, '}') || !(std::stringstream(s)>>val)) throw err;
+      } else {
+        if (!std::getline(in, s, ',') || !(std::stringstream(s)>>val)) throw err;
+      }
+      m(row, column) = val;
+    }
+  }
+  return in;
+}
+
+template<typename TYPE>
+    std::istream& operator>>(std::istream& in, Matrix<TYPE, 0, 0>& m) {
+  std::ios_base::failure err("illegal matrix format");
+  char c(0);
+  size_t rows(0), columns(0);
+  TYPE val(0);
+  std::string s;
+  if (!in.get(c) || c!='[') throw err;
+  if (!std::getline(in, s, 'x') || !(std::stringstream(s)>>rows) || rows<=0) throw err;
+  if (!std::getline(in, s, ']') || !(std::stringstream(s)>>columns) || columns<=0) throw err;
+  m.resize(rows, columns);
   if (!in.get(c) || c!='{') throw err;
-  for (size_t row = 0; row < m.ROWS; ++row) {
+  for (size_t row = 0; row < m.rows(); ++row) {
-    for (size_t column = 0; column < m.COLUMNS; ++column) {
+    for (size_t column = 0; column < m.columns(); ++column) {
-      if (row==m.ROWS-1&&column==m.COLUMNS) {
+      if (row==m.rows()-1&&column==m.columns()-1) {
         if (!std::getline(in, s, '}') || !(std::stringstream(s)>>val)) throw err;
       } else {
         if (!std::getline(in, s, ',') || !(std::stringstream(s)>>val)) throw err;

test/basic.cxx

@@ -274,6 +274,17 @@ class TemplateMatrixTest: public CppUnit::TestFixture {
         m.inv();
         CPPUNIT_ASSERT_EQUAL(m.i(), m*o);
         CPPUNIT_ASSERT_EQUAL(res, m);
+      } {
+        Matrix<T,3,3> m(1, 3, 1,
+                        1, 1, 2,
+                        2, 3, 4);
+        const Matrix<T,3,3> res(2, 9, -5,
+                                0, -2, 1,
+                                -1, -3, 2);
+        Matrix<T,3,3> o(m);
+        m.inv();
+        CPPUNIT_ASSERT_EQUAL(m.i(), m*o);
+        CPPUNIT_ASSERT_EQUAL(res, m);
       } {
         Matrix<T,4,4> m(2, 1, 4, 1,
                         -1, 1, 0, 2,
@@ -720,6 +731,20 @@ class VariableMatrixTest: public CppUnit::TestFixture {
         CPPUNIT_ASSERT_EQUAL(res, m);
       }
     }
+    template<typename T>
+        void stream() {
+      const Matrix<T> m1(3, 4,
+                         1, 2, 3, 4,
+                         5, 6, 7, 8,
+                         1, 4, 2, 8);
+      Matrix<T> m2(1, 1);
+      std::string res("[3x4]{1,2,3,4,5,6,7,8,1,4,2,8}");
+      std::stringstream ss;
+      ss<<m1;
+      CPPUNIT_ASSERT_EQUAL(res, ss.str());
+      ss>>m2;
+      CPPUNIT_ASSERT_EQUAL(m1, m2);
+    }
     CPPUNIT_TEST_SUITE(VariableMatrixTest);
     CPPUNIT_TEST(initFromArray1<int>);
     CPPUNIT_TEST(initFromArray1<long>);
@@ -811,6 +836,12 @@ class VariableMatrixTest: public CppUnit::TestFixture {
     CPPUNIT_TEST(inv<float>);
     CPPUNIT_TEST(inv<double>);
     CPPUNIT_TEST(inv<long double>);
+    CPPUNIT_TEST(stream<int>);
+    CPPUNIT_TEST(stream<long>);
+    CPPUNIT_TEST(stream<unsigned>);
+    CPPUNIT_TEST(stream<unsigned long>);
+    CPPUNIT_TEST(stream<float>);
+    CPPUNIT_TEST(stream<double>);
     CPPUNIT_TEST_SUITE_END();
 };
 CPPUNIT_TEST_SUITE_REGISTRATION(VariableMatrixTest);

test/makefile.am

@@ -10,8 +10,7 @@
 
 AM_CPPFLAGS = -I${top_srcdir}/src -I${top_builddir}/src
 AM_LDFLAGS = -L${abs_top_builddir}/src/.libs
-LDADD = -lcppunit
+LDADD = -lcppunit -lmatricxx
-#LDADD = -lmatricxx
 
 check_PROGRAMS = basic
 TESTS = ${check_PROGRAMS}