[Swig-devel] [ swig-Patches-2753469 ] [C#] bool & OUTPUT typemap does not work

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Patches item #2753469, was opened at 2009-04-12 01:43
Message generated for change (Tracker Item Submitted) made by miloyip
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Milo Yip (miloyip)
Assigned to: Nobody/Anonymous (nobody)
Summary: [C#] bool & OUTPUT typemap does not work

Initial Comment:
As shown in the following example, *jarg4 has not been initialized to zero, so writing to *arg4 can only write the first byte of *jarg4. If the other three bytes are non-zero initially, then after calling the wrapper in C# the bool parameter must be true, no matter what C++ side outputs.

This is non-deterministic because *jarg4 is passed by interop and it is non-initailized.

// in Runtime.i
%include <typemaps.i>
class Runtime {
	bool GetField(int object, const char* fieldName, bool& OUTPUT);
};

// Runtime.cxx

SWIGEXPORT unsigned int SWIGSTDCALL CSharp_Runtime_GetField__SWIG_1(void * jarg1, int jarg2, char * jarg3, unsigned int * jarg4) {
  unsigned int jresult ;
  Mil::Script::Runtime *arg1 = (Mil::Script::Runtime *) 0 ;
  Mil::Script::Object arg2 ;
  char *arg3 = (char *) 0 ;
  bool *arg4 = 0 ;
  bool result;
  
  arg1 = (Mil::Script::Runtime *)jarg1; 
  arg2 = (Mil::Script::Object)jarg2; 
  arg3 = (char *)jarg3; 
  arg4 = (bool *)jarg4; 
  result = (bool)(arg1)->GetField(arg2,(char const *)arg3,*arg4);
  jresult = result; 
  return jresult;
}



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