swig

I have implemented a class with std::map in C++ and created interface using SWIG to be call from Java. However there is no iterator object that allows me to iterate through the entries in the SWIG wrapped std::map . Does anyone know how to create an iterator? In order to be able to iterate over an Object in Java it needs to implement Iterable . This in turn requires a member function called iterator() which returns a suitable implementation of an Iterator . From your question it's not quite clear if what types you're using in the map and if you want to be able to iterate over the pairs (as you

I know, there are often many ways to solve certain problems. But here I know which way I want to have it, but I am unable to make it work with Python and SWIG... I have a C-function, which returns me an array of double values: double *my(int x) { double a,b,*buf; buf = malloc (x * sizeof(double)); a=3.14; b=2.7; buf[0]=a; buf[1]=b; return buf; } Here, I definitively want to have the array as a return value. Not, as in many examples a 'void' function, which writes into an input array. Now, I would like to get a SWIG-python wrapper, which might be used as: >>> import example >>> print example.my

The SWIG docs explain these two directives as follows: %include : "To include another file into a SWIG interface, use the %include directive ... Unlike, #include , %include includes each file once (and will not reload the file on subsequent %include declarations). Therefore, it is not necessary to use include-guards in SWIG interfaces." %import : "SWIG provides another file inclusion directive with the %import directive ... The purpose of %import is to collect certain information from another SWIG interface file or a header file without actually generating any wrapper code. Such information

I have a compatibility library that uses SWIG to access a C++ library. I would find it useful to be able to create a SWIG-wrapped Python object inside this layer (as opposed to accepting the C++ object as an argument or returning one). I.e. I want the PyObject* that points to the SWIG-wrapped C++ object. I discovered that the SWIG_NewPointerObj function does exactly this. The SWIG-generated xx_wrap.cpp file uses this function, but it's also made available in the header emitted by swig -python -external-runtime swigpyrun.h HOWEVER, I cannot find any reference to what the last argument to this

This will probably get tagged as a duplicate, but I haven't had any luck, so here we go. I'm trying to develop a "Jarvis" like setup with Python2.7. I', looking to use Pocketsphinx as part of that. I tried to do this on my Windows 10 machine, but Pocketsphinx requires Swig, and that utterly failed on the Windows 10 machine (I'm still working on that.) So, I moved over to my Raspberry Pi Zero, since that is where I will be looking to impliment the actual program anyways. I got Swig to install just fine. None of the problems that Windows 10 had. Then I tried to install Pocketsphinx and things

I have a C function that takes as paramenter an 8 bit integer int8_t foo( int8_t x ); I would like to call this function from my python code using a swig interface but int8_t type do not exists in python. In order to have this kind of types exists a python module called numpy. Even using this yet I do not manage to make the 2 comunicating. Do you know if there is any way of defining such a type in the SWIG interfacve in order to be able to use it from python?? int8_t is just an example... i have to do the same for signed/unsigned from 8 up to 64 bits Thanks in advance, S. Flexo In your SWIG

EDIT: Solved, my mistake; explained in my answer. I have this: std::vector < boost::shared_ptr < Entity > > entities; and I try to expose it through SWIG like this: %include "boost_shared_ptr.i" %include "std_vector.i" %shared_ptr(Entity) %include <Entity.h> namespace std { %template(EntityVector) vector<boost::shared_ptr<Entity> >; }; %include <TheFileWithEntities.h> However, in Python entities ends up being a tuple: import MyModule print type(MyModule.cvar.entities) # Output: (type 'tuple') I've Googled for this, but could not find any concrete examples on how to wrap this. One page gave a

I am using SWIG to access C++ code from Python. How do I elegantly wrap a function that returns values in variables passed by reference like void set(double&a) { a = 42.; } I could not find out how to do this. In the best case I'd be able to use the function in Python with Python floats: >>> b = 2. >>> set(b) >>> print b 42.0 At the moment it gives me a TypeError: in method 'TestDouble_set', argument 2 of type 'double &' . sambha Do it this way: Your swig interface file: %include <typemaps.i> %apply double& INOUT { double& a }; void set(double& a); Usage in python script: a = 0.0 a = set(a)