Re: [Swig-user] Need help with unsigned char *

[William S F. <ws...@fu...>]

Hamlet Batista wrote:
> Hi,
> 
> I have this struct:
> 
> typedef struct
> {
> unsigned char *corporate_id;
> unsigned char *user_id;
> unsigned char *password;
> } CAI_Authentication;
> 
> swig creates the wrapper find, but when I try this from python
> 
> auth = CAI_Authentication()
> auth.corporate_id = "guest"
> 
> I get this errror:
> 
> 
> 13 return
> 14 method = class_type.__swig_setmethods__.get(name,None)
> ---> 15 if method: return method(self,value)
> 16 if (not static) or hasattr(self,name):
> 17 self.__dict__[name] = value
> 
> TypeError: in method 'CAI_Authentication_corporate_id_set', argument 2
> of type 'unsigned char *'
> 
> Any help will be appreciated.
> 

Default wrapping for unsigned char is for a pointer, not as a string as
you require. SWIG uses char* for strings and this is all documented. You
should be able to apply the char* typemaps to unsigned char*, but
failing that copy the char* typemaps and use for unsigned char*. Or
alternatively, change your C code to use char*.

William