Enhancement - Record::has

- Implemented Record::has which guarantees no autovivification of
  attributes.

src/Record.cpp

@@ -116,6 +116,16 @@ void Record::parse (const std::string& input)
                                    "Record not recognized as format 4");
 }
 
+////////////////////////////////////////////////////////////////////////////////
+bool Record::has (const std::string& name) const
+{
+  Record::const_iterator i = this->find (name);
+  if (i != this->end ())
+    return true;
+
+  return false;
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 std::vector <Att> Record::all ()
 {

src/Record.h

@@ -43,6 +43,7 @@ public:
   std::string composeCSV ();
   void parse (const std::string&);
 
+  bool has (const std::string&) const;
   std::vector <Att> all ();
   const std::string get (const std::string&) const;
   int get_int (const std::string&) const;

src/tests/record.t.cpp

@@ -35,7 +35,7 @@ Context context;
 ////////////////////////////////////////////////////////////////////////////////
 int main (int argc, char** argv)
 {
-  UnitTest t (17);
+  UnitTest t (19);
 
   // (blank)
   bool good = true;
@@ -85,6 +85,10 @@ int main (int argc, char** argv)
   record.set ("name", "value");
   t.is (record.composeF4 (), "[name:\"value\"]\n", "Record::set");
 
+  // Record::has
+  t.ok    (record.has ("name"), "Record::has");
+  t.notok (record.has ("woof"), "Record::has not");
+
   // Record::get_int
   record.set ("one", 1);
   t.is (record.composeF4 (), "[name:\"value\" one:\"1\"]\n", "Record::set");