added Node::first() and Node::last() to get the first or last child

ChangeLog

@@ -1,3 +1,18 @@
+2015-03-24 08:03  marc
+
+	* README: typo
+
+2015-03-03 10:22  marc
+
+	* configure.ac: a=\\PACKAGEPACKAGE_VERSION\; b=\\PACKAGE_VERSION\;
+	  for f in $(grep --exclude-dir=.svn --exclude=\\*~\ -lr "$a"); do
+	  sed -i "s,$a,$b,g" "$f"; done
+
+2015-02-23 10:29  marc
+
+	* ChangeLog, src/xml-cxx/xml.hxx: make check fixed - now warnings
+	  deprecated std::auto_ptr → to be fixed later; refs #14
+
 2015-02-19 08:45  marc
 
 	* AUTHORS, ChangeLog, INSTALL, README, ax_cxx_compile_stdcxx_11.m4,

src/xml-cxx/xml.hxx

@@ -813,6 +813,10 @@ namespace xml {
           const throw(attribute_not_available);
       const Attributes& attributes() const throw();
       Attributes& attributes() throw();
+      const Node& first() const throw(out_of_range);
+      Node& first() throw(out_of_range);
+      const Node& last() const throw(out_of_range);
+      Node& last() throw(out_of_range);
       Node& limits(size_type min=0, size_type max=0) throw();
       List list(const std::string& name) const throw();
       bool operator()(const std::string& child) const throw();

src/xml.cxx

@@ -455,6 +455,38 @@ namespace xml {
   Attributes& Node::attributes() throw() {
     return _attributes;
   }
+  //! Get the first child node
+  /*! Returns the first child node or throws an exception, if there are
+      no children. */
+  Node& Node::first() throw(out_of_range) {
+    Contents::iterator it(_contents.begin());
+    if (it==_contents.end()) throw out_of_range(*this, 0);
+    return **it;
+  }
+  //! Get the first child node
+  /*! Returns the first child node or throws an exception, if there are
+      no children. */
+  const Node& Node::first() const throw(out_of_range) {
+    Contents::const_iterator it(_contents.begin());
+    if (it==_contents.end()) throw out_of_range(*this, 0);
+    return **it;
+  }
+  //! Get the last child node
+  /*! Returns the last child node or throws an exception, if there are
+      no children. */
+  const Node& Node::last() const throw(out_of_range) {
+    Contents::const_reverse_iterator it(_contents.rbegin());
+    if (it==_contents.rend()) throw out_of_range(*this, 0);
+    return **it;
+  }
+  //! Get the last child node
+  /*! Returns the last child node or throws an exception, if there are
+      no children. */
+  Node& Node::last() throw(out_of_range) {
+    Contents::reverse_iterator it(_contents.rbegin());
+    if (it==_contents.rend()) throw out_of_range(*this, 0);
+    return **it;
+  }
   //! Pass a minimal and maximal number for this node in a xml file.
   /*! Minimal and maximal values are verified when you use the node as
       a template in a xml::Factory. When the factory reads a stucture