我有以下C++代码:
#ifdef WIN32
# undef CALLBACK
# define CALLBACK __stdcall
#else
# define CALLBACK
#endif
#include <iostream>
#include <vector>
namespace OdeProxy {
typedef std::vector< double > state_type;
typedef void (CALLBACK *System)( const state_type &, state_type &, const double);
typedef void (CALLBACK *Observer)( const state_type &, double);
class Ode {
public:
state_type initialConditions;
System system;
Observer observer;
double from;
double to;
double step;
};
}
关于 .i 文件:
/* File : MyProject.i */
%module MyProject
%{
#include "C++/OdeProxy.h"
%}
%include "std_vector.i"
%include "C++/OdeProxy.h"
%template(state_type) std::vector<double>;
//// Delegate realated stuff ////
%typemap(cstype) void (*)( const state_type &, state_type &, const double) "SystemDelegate";
%typemap(imtype) void (*)( const state_type &, state_type &, const double) "SystemDelegate";
%typemap(cstype) void (*)( const state_type &, double) "ObserverDelegate";
%typemap(imtype) void (*)( const state_type &, double) "ObserverDelegate";
我受到这个帖子的启发而创建了代码生成器。
然而我不知道如何生成像这样的代码:
using OdeLibrary;
namespace OdeTest
{
class Program
{
static void Main(string[] args)
{
//var lam = new OdeLibrary.SWIGTYPE_p_f_r_q_const__std__vector__double___double__void()
var ode = new Ode{
from = 0,
to = 10,
initialConditions = new state_type(new[]{1,2,3}),
step = 0.01,
observer = (x, dxdt, t) => { return; }
};
}
}
}
编译错误:
Error Cannot convert lambda expression to type 'OdeLibrary.SWIGTYPE_p_f_r_q_const__std__vector__double___double__void' because it is not a delegate type
其中SWIGTYPE_p_f_r_q_const__std__vector__double___double__void
看起来像这样:
/* ----------------------------------------------------------------------------
* This file was automatically generated by SWIG (http://www.swig.org).
* Version 2.0.9
*
* Do not make changes to this file unless you know what you are doing--modify
* the SWIG interface file instead.
* ----------------------------------------------------------------------------- */
namespace OdeLibrary {
using System;
using System.Runtime.InteropServices;
public class SWIGTYPE_p_f_r_q_const__std__vector__double___double__void {
private HandleRef swigCPtr;
internal SWIGTYPE_p_f_r_q_const__std__vector__double___double__void(IntPtr cPtr, bool futureUse) {
swigCPtr = new HandleRef(this, cPtr);
}
protected SWIGTYPE_p_f_r_q_const__std__vector__double___double__void() {
swigCPtr = new HandleRef(null, IntPtr.Zero);
}
internal static HandleRef getCPtr(SWIGTYPE_p_f_r_q_const__std__vector__double___double__void obj) {
return (obj == null) ? new HandleRef(null, IntPtr.Zero) : obj.swigCPtr;
}
}
}
我想知道在.i
文件中需要做出哪些更改,或者在C#生成的包装程序中需要添加什么,才能将我的C# lambda表达式作为委托传递给C++类?
new Func<>
而不是lambda表达式吗? - Dustin KingenOde
,其中包含protected
的virtual
成员system
和observer
,在 C# 实现中对其进行重载,并为public
的System
/Observer
Actions<IEnumerable...>
提供get
/set
? - DuckQueen