Wrapping C++ code using STL containers with SWIG

This code uses SWIG to wrap C++ functions which use STL container classes. It demonstrates how to wrap C++ code which uses STL container class and instantiate STL container wrappers in Python. In the process it also demonstrates how to link SWIG wrapper code to dynamic libraries.

Building

First build the fastlz C compression code into a dynamic library:

./build_fastlz_lib.sh

Then build the SWIG wrapper using the following shell script:

./build_swig_python_wrapper.sh

Evaluating

Test a full round-trip compression and decompression using the wrapper with py.test

py.test -v

Code Files

• C compression code which gets built into a dynamic library
  • fastlz.h/.c
• C++ compression wrapper which wraps the C library and gets wrapped by SWIG
  • Compress.h/.cpp
• SWIG
  • Interface File
    • Compress.i
  • Distutils script
    • setup.py

Exercise

Fill in the TODO: blocks present in test_swig.py