Fix -Wextra warnings

examples/d/d.cc

@@ -9,16 +9,19 @@ struct D *DCreate (void)
 void DDoA (struct D *d)
 {
   std::cout << "DDoA" << std::endl;
+  d++;
 }
 void DDoB (struct D &d)
 {
   std::cout << "DDoB" << std::endl;
+  d.d++;
 }
 void DDoC (const struct D &d)
 {
-  std::cout << "DDoC" << std::endl;
+  std::cout << "DDoC: " << d.d << std::endl;
 }
 void DDestroy (struct D *d)
 {
   std::cout << "DDestroy" << std::endl;
+  d++;
 }

pybindgen/cppclass.py

@@ -1872,7 +1872,7 @@ static void
     def _generate_tp_richcompare(self, code_sink):
         tp_richcompare_function_name = "_wrap_%s__tp_richcompare" % (self.pystruct,)
 
-        code_sink.writeln("static PyObject*\n%s (%s *self, %s *other, int opid)"
+        code_sink.writeln("static PyObject*\n%s (%s *PYBINDGEN_UNUSED(self), %s *other, int opid)"
                           % (tp_richcompare_function_name, self.pystruct, self.pystruct))
         code_sink.writeln("{")
         code_sink.indent()

pybindgen/pytypeobject.py

@@ -148,10 +148,12 @@ class PyNumberMethods(object):
 	'    (binaryfunc) %(nb_true_divide)s,\n'
 	'    (binaryfunc) %(nb_inplace_floor_divide)s,\n'
 	'    (binaryfunc) %(nb_inplace_true_divide)s,\n'
-        #'\n'
-	#'    /* Added in release 2.5 */\n'
-	#'    (unaryfunc) %(nb_index)s,\n'
         '\n'
+        '#if PY_VERSION_HEX >= 0x020500F0\n'
+	'    /* Added in release 2.5 */\n'
+	'    (unaryfunc) %(nb_index)s,\n'
+        '\n'
+        '#endif\n'
         '};\n'
         )
 
@@ -203,7 +205,7 @@ class PyNumberMethods(object):
 	slots.setdefault('nb_true_divide', 'NULL')
 	slots.setdefault('nb_inplace_floor_divide', 'NULL')
 	slots.setdefault('nb_inplace_true_divide', 'NULL')
-	#slots.setdefault('nb_index', 'NULL')
+	slots.setdefault('nb_index', 'NULL')
 
         code_sink.writeln(self.TEMPLATE % slots)
 

tests/foo.h

@@ -54,7 +54,7 @@ public:
     Foo () : m_datum (""), m_initialized (false)
         { Foo::instance_count++; }
 
-    Foo (int xpto)  DEPRECATED : m_initialized (false) {}
+    Foo (int xpto)  DEPRECATED : m_initialized (false) { xpto++; }
 
     Foo (std::string const &datum) : m_datum (datum), m_initialized (false)
         { Foo::instance_count++; }
@@ -679,7 +679,7 @@ class AbstractXptoImpl : public AbstractXpto
 public:
     AbstractXptoImpl () {}
 
-    virtual void something (int x) const {}
+    virtual void something (int x) const { x++; }
 };