這幾天單位的同事好多請假不來，上班如同值班一般，但是事情一樣沒少，甚是繁忙。
父親去外地開會去了，母親在醫(yī)院陪伴住院的外祖母，晚飯都是自己簡單對付一下，隨便弄些糊口了事。
今年的工作乏善可陳，除非上了幾個項目，真不知道總結(jié)怎么來寫。最大的成就或許是對python的學(xué)習(xí)和應(yīng)用，本來想寫一些應(yīng)用的，但是各個都是半成品。Java自己沒怎么去看過，或許是因為Java這一年也沒什么大的發(fā)展吧。C++倒是看了不少書，泛型也有點入門了，湊合著能寫點忽悠人的代碼了。Linux shell和gnu tools 那塊今年有學(xué)了不少東西。通過移植幾個win32的庫，把a(bǔ)utotools了解的差不多了。這個月加了內(nèi)存，升到4G后 裝了個64位的Vista玩,感覺就是windows的64位版本遠(yuǎn)不如linux的。
想想今年幫過不少人做過畢業(yè)設(shè)計，有本科的，也有研究生。有最鐵的兄弟，也有
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上面寫于12.26 哪幾天身體不好 沒寫完 其實也沒多大意思 都已經(jīng)到明年了 算了吧
找地方貼下 我修改的python_def_function的代碼和示例
/******************************************************************************
* How to wrap boost.function objects with boost.python and use them both from
* C++ and Python.
*
* AUTHOR: Alcides Viamontes Esquivel
*
* LICENSE: You're free to use this file for whatever you want. You're
* specially welcome to improve it in any way and give the
* changes back.
*
******************************************************************************
*
* Usage example:
*
* For the boost.python C++ module:
*
* 
* #include <boost/python.hpp>
*
* #include "py_boost_function.hpp"
*
*
* void module_greeter_f(std::string const& origin)
* {
* cout << "Hello world, by " << origin << endl;
* }
*
*
* boost::function< void( std::string const& ) > module_greeter(
* module_greeter_f
* ) ;
*
*
* BOOST_PYTHON_MODULE( foo ) {
*
* using namespace boost.python;
*
*
* def_function< void(string const&) >(
* "greeter_function_t",
* "A greeting function"
* );
*
*
* scope().attr("module_greeter") = module_greeter;
* }
*
* From python code:
*
* - Invoke:
*
* >>> import foo
* >>> foo.module_greeter("world")
*
* - Create instances from python:
*
* >>> def my_greetings(hi):
* >>> print hi, ", world"
* >>>
* >>> grfunc = foo.greeter_function_t.from_callable( my_greetings )
*
*/
#ifndef PY_BOOST_FUNCTION_INCLUDE_GUARD
#define PY_BOOST_FUNCTION_INCLUDE_GUARD
#include <boost/python.hpp>
#include <boost/function.hpp>
#include <boost/function_types/function_type.hpp>
#include <boost/function_types/result_type.hpp>
#include <boost/function_types/is_function.hpp>
#include <boost/type_traits/function_traits.hpp>
#include <boost/preprocessor/repetition/enum_binary_params.hpp>
#include <boost/preprocessor/repetition/enum_params.hpp>
#include <boost/preprocessor/repetition/repeat.hpp>
#include <boost/preprocessor/repetition/repeat_from_to.hpp>
namespace detail{
template <typename RT, int arity>
struct pyobject_invoker;
template <typename RT>
struct pyobject_invoker<RT, 0 >
{
boost::python::object callable;
RT operator( )( )
{
return boost::python::extract<RT>( callable( ) );
}
};
#define MAKE_PYOBJECT_INVOKER(z, n, data) \
template <typename RT> \
struct pyobject_invoker<RT, n >{ \
boost::python::object callable; \
template < BOOST_PP_ENUM_PARAMS(n, typename Arg) > \
RT operator( )(BOOST_PP_ENUM_BINARY_PARAMS(n, Arg, arg ) )\
{\
boost::python::object o = callable( BOOST_PP_ENUM_PARAMS(n, arg) );\
return boost::python::extract<RT>( o );\
}\
};\
template <> \
struct pyobject_invoker<void, n >{ \
boost::python::object callable; \
template < BOOST_PP_ENUM_PARAMS(n, typename Arg) > \
void operator( )(BOOST_PP_ENUM_BINARY_PARAMS(n, Arg, arg ) )\
{\
boost::python::object o = callable( BOOST_PP_ENUM_PARAMS(n, arg) );\
}\
};
BOOST_PP_REPEAT_FROM_TO( 1, 6, MAKE_PYOBJECT_INVOKER, nothing );
#undef MAKE_PYOBJECT_INVOKER
template <typename FT>
boost::function< FT > function_frompyobj( boost::python::object o )
{
const int arity = boost::function_traits< FT >::arity;
typedef
typename boost::function_types::result_type< FT >::type
result_type;
pyobject_invoker<result_type, arity > inv;
inv.callable = o;
return inv;
}
} // namespace detail
template <typename FT>
void def_function(const char* func_name, const char* func_doc)
{
BOOST_STATIC_ASSERT( boost::function_types::is_function< FT >::value ) ;
namespace bp = boost::python;
typedef boost::function<FT> function_t;
bp::class_< function_t >
(func_name, func_doc, bp::no_init)
.def("__call__", &function_t::operator() )
.def("from_callable", &detail::function_frompyobj<FT> )
.staticmethod("from_callable")
;
} // def_function0
#endif // PY_BOOST_FUNCTION
// python_test.cpp : 定義控制臺應(yīng)用程序的入口點。
//
#include "stdafx.h"
#include <boost/function.hpp>
#include <boost/bind.hpp>
#include <string>
void error(){
PyErr_Print();
boost::python::object sys(
boost::python::handle<>(PyImport_ImportModule("sys"))
);
boost::python::object err = sys.attr("stderr");
std::string err_text = boost::python::extract<std::string>(err.attr("getvalue")());
fprintf(stderr,"Python Error:\n%s\n",err_text.c_str());
}
void py_init(boost::python::object& main_module,boost::python::object& main_namespace){
Py_Initialize();
main_module = boost::python::import("__main__");
main_namespace = main_module.attr("__dict__");
PyRun_SimpleString("import cStringIO");
PyRun_SimpleString("import sys");
PyRun_SimpleString("sys.stderr = cStringIO.StringIO()");
}
class Sample{
private:
int _value;
public:
Sample(int value):_value(value){}
Sample(const Sample& rhs):_value(rhs._value){}
void setValue(int value){_value=value;}
int getValue(){return _value;}
};
void print_hello(const char* str){
printf("%s\n",str);
}
int _tmain(int argc, _TCHAR* argv[])
{
Sample sample(10);
boost::function<void(int)> setter = boost::bind(&Sample::setValue,&sample,_1);
boost::function<int(void)> getter = boost::bind(&Sample::getValue,&sample);
boost::python::object main_module,main_namespace;
py_init(main_module,main_namespace);
def_function<int(void)>("getter_t", "A functor sample");
def_function<void(int)>("setter_t", "A functor sample 2");
using namespace boost::python;
main_namespace["hello"]=make_function(print_hello);
main_namespace["get"]=getter;
main_namespace["set"]=setter;
try
{
object ignored = exec("set(20);print get()", main_namespace,main_namespace);
printf("%d\n",sample.getValue());
}
catch(error_already_set const &)
{
error();
}
return 0;
}
posted on 2009-01-24 09:58
zarra 閱讀(329)
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