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swig/Lib/python/pybackward.swg

Index: swig/Lib/python/pybackward.swg
===================================================================
--- swig/Lib/python/pybackward.swg	(revision 0)
+++ swig/Lib/python/pybackward.swg	(revision 0)
@@ -0,0 +1,45 @@
+/* 
+   adding backward compatibility macros
+*/
+
+#define SWIG_arg(x...)     %arg(x)
+#define SWIG_Mangle(x...)  %mangle(x)
+
+#define SWIG_As_frag(Type...)      %fragment_name(As, Type)
+#define SWIG_As_name(Type...)      %symbol_name(As, Type) 
+#define SWIG_As(Type...)     	   SWIG_As_name(Type) SWIG_AS_CALL_ARGS 
+
+#define SWIG_Check_frag(Type...)   %fragment_name(Check, Type)
+#define SWIG_Check_name(Type...)   %symbol_name(Check, Type) 
+#define SWIG_Check(Type...)        SWIG_Check_name(Type) SWIG_AS_CALL_ARGS 
+
+%define %ascheck_methods(Code, Type...)
+%fragment(SWIG_As_frag(Type),"header", fragment=SWIG_AsVal_frag(Type)) {
+SWIGINTERNINLINE Type
+SWIG_As(Type)(PyObject* obj)
+{
+  Type v;
+  int res = SWIG_AsVal(Type)(obj, &v);
+  if (!SWIG_IsOK(res)) {
+    /*
+      this is needed to make valgrind/purify happier. 
+     */
+    memset((void*)&v, 0, sizeof(Type));
+    SWIG_Error(res, "");
+  }
+  return v;
+}
+}
+
+%fragment(SWIG_Check_frag(Type),"header",fragment=SWIG_AsVal_frag(Type)) {
+SWIGINTERNINLINE int
+SWIG_Check(Type)(PyObject* obj)
+{
+  int res = SWIG_AsVal(Type)(obj, (Type*)0);
+  return SWIG_IsOK(res);
+}
+}
+%enddef
+
+%apply_checkctypes(%ascheck_methods)
+