Wrapping C++ Standard library with Cython in ipython

Question

According to the Cython documentation ,I write the following cython code as follows:

In [1]:%load_ext Cython
In [2]: %%cython
         from libcpp.vector c         


        

Answer 1

As an alternative to @romeric's answer, the documentation for ipython Cython magic suggests using

%%cython --cplus

to turn on C++ mode. Help for the command can also be accessed by running %%cython? in the IPython console.

Personally I think there's a lot to be said for using the distutils comment approach, since it links the language with the code that requires it.

Answer 2

You need to tell cython that you are compiling C++ and not C, through the special comment

# distutils: language = c++

adding this after the %%cython block will fix your problem.