c++ python交互之boost.python 简集之Map处理

C++中经常使用map来存储键值对，本章介绍python如何传递或返回c++ map键值对

 

c++源码:src.cpp

#include <iostream> #include <string> #include <map> using namespace std; typedef map<string,int> simap; simap A() {     simap m;     m["aaa"] = 1;     m["bbb"] = 2;     m["ccc"] = 3;     m["ddd"] = 4;     m["eee"] = 5;     m["fff"] = 6;     return m; }

为python做转换代码,src4py.cpp

#include <boost/python.hpp> #include <boost/python/suite/indexing/map_indexing_suite.hpp> #include "src.cpp" using namespace boost::python; BOOST_PYTHON_MODULE(test) {         class_<simap>("pySImap")     .def( map_indexing_suite<simap>() )     ;     def("a",A); }

python调用端代码 : test.py

import test mapcontainer = test.pySImap() mapcontainer = test.a() for i in mapcontainer:     print i dict = {} for i in mapcontainer:     key = i.key()     dict[key] = i.data() print dict