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