I have a enum declaration as follows:
typedef enum mail_ {Out = 0,Int = 1,Spam = 2
} mail;
Function:
mail status;
int fill_mail_data(int i, &status);
In the function above, status
gets filled up and will send.
When I am trying this through swig I am facing the following issues:
- It is not showing details of
mail
. When I try to print mail.__doc__
or help(mail)
, it is throwing an error saying there is no such Attribute, though though i am able to use those values (Spam
, In
, and Out
).
- As shown above, the Swig does not know what
main
is, so it is not accepting any function arguments for that mail
.
To SWIG, an enum
is just an integer. To use it as an output parameter as in your example, you also can declare the parameter as an output parameter like so:
%module x// Declare "mail* status" as an output parameter.
// It will be returned along with the return value of a function
// as a tuple if necessary, and will not be required as a function
// parameter.
%include <typemaps.i>
%apply int *OUTPUT {mail* status};%inline %{typedef enum mail_ {Out = 0,Int = 1,Spam = 2
} mail;int fill_mail_data(int i, mail* status)
{*status = Spam;return i+1;
}%}
Use:
>>> import x
>>> dir(x) # Note no "mail" object, just Int, Out, Spam which are ints.
['Int', 'Out', 'Spam', '__builtins__', '__cached__', '__doc__', '__file__', '__initializing__', '__loader__', '__name__', '__package__', '_newclass', '_object', '_swig_getattr', '_swig_property', '_swig_repr', '_swig_setattr', '_swig_setattr_nondynamic', '_x', 'fill_mail_data']
>>> x.fill_mail_data(5)
[6, 2]
>>> ret,mail = x.fill_mail_data(5)
>>> mail == x.Spam
True