如何通过DLL在C代码中编译MATLAB函数 [英] How can I compile the MATLAB functions in C Code through DLL

问题描述

亲爱的所有人，

使用MATLAB 2009b，我使用mcc从MATLAB函数(first.m)创建了DLL(first_lib.dll，first_lib.h和first_lib.lib)，我想使用Microsoft Visual C ++ 2008(Express Edition)在C代码中调用它)，它是从互联网上以免费软件下载的.

我在编译C代码时在此处发布带有编译错误的完整代码(请提供建议):

报告的错误和警告是:

1)错误C2275:``mxArray'':非法将此类型用作表达式
c:\ program files \ matlab \ r2009a \ extern \ include \ matrix.h(292):请参见``mxArray''的声明

2)警告C4047:``='':``int''在间接级别上与``void *''
不同
3)警告C4047:``='':``int''在间接级别上与``mxArray *''
不同
4)警告C4047:``function'':``const mxArray *''的间接访问级别与``int''
不同
5)警告C4024:``mxGetPr_proxy'':形式参数和实际参数1的类型不同

6)错误C2172:``memcpy'':实际参数不是指针:参数2


请提供有关如何编译和运行它的建议.
我将在此处发布完整的C代码，其中mlfFirst是函数调用.
代码:

Dear All,

using MATLAB 2009b, I created the DLL (first_lib.dll, first_lib.h and first_lib.lib) from MATLAB function (first.m) using mcc and I would like to call it in a C code using Microsoft Visual C++ 2008 (Express Edition) which I downloaded from internet as free s/w.

I am posting the complete code here with compilation errors while compiling the C code (Please advice on that):

Reported Errors & warnings are:

1) error C2275: ''mxArray'' : illegal use of this type as an expression
c:\program files\matlab\r2009a\extern\include\matrix.h(292) : see declaration of ''mxArray''

2) warning C4047: ''='' : ''int'' differs in levels of indirection from ''void *''

3) warning C4047: ''='' : ''int'' differs in levels of indirection from ''mxArray *''

4) warning C4047: ''function'' : ''const mxArray *'' differs in levels of indirection from ''int''

5) warning C4024: ''mxGetPr_proxy'' : different types for formal and actual parameter 1

6) error C2172: ''memcpy'' : actual parameter is not a pointer : parameter 2


Please advice on how to compile it and run it.
I am posting my complete C code here, where mlfFirst is the function call.
Code:

#ifdef _MSC_VER // if MS Visual C++
#pragma warning(push)
#pragma warning(disable:4996)
#pragma comment(lib, "libdfblas.lib")
#pragma comment(lib, "libdflapack.lib")
#pragma comment(lib, "libemlrt.lib")
#pragma comment(lib, "libeng.lib")
#pragma comment(lib, "libfixedpoint.lib")
#pragma comment(lib, "libmex.lib")
#pragma comment(lib, "libmwblas.lib")
#pragma comment(lib, "libmwlapack.lib")
#pragma comment(lib, "libmwmathutil.lib")
#pragma comment(lib, "libmwservices.lib")
#pragma comment(lib, "libmx.lib")
#pragma comment(lib, "libut.lib")
#pragma comment(lib, "mclcom.lib")
#pragma comment(lib, "mclcommain.lib")
#pragma comment(lib, "mclmcr.lib")
#pragma comment(lib, "mclmcrrt.lib")
#pragma comment(lib, "mclxlmain.lib")
#pragma comment(lib, "first_lib.lib")
#endif
#include
#include ;
#include "mex.h"
#include "first_lib.h"
int main()
{
    double a,b,c, Ans;
    a = 1; b =2; c=3;
   mxArray *pmX, *pmY, *pmZ;
    mxArray* pmAns = NULL;
    mclinitializeApplication(NULL,0);
    *mxGetPr(pmX) = a;
    *mxGetPr(pmY) = b;
    *mxGetPr(pmZ) = c;
    first_libInitialize();
    memcpy(mxGetPr(pmX),&a, sizeof(double)*1);
    memcpy(mxGetPr(pmY),&b, sizeof(double)*1);
    memcpy(mxGetPr(pmZ),&c, sizeof(double)*1);
    mlfFirst(1,&pmAns,pmX,pmY,pmZ);
    Ans = *mxGetPr(pmAns);
    first_libTerminate();
   printf("%f %f\n", Ans);
    mxDestroyArray(pmX);
    mxDestroyArray(pmY);
    mxDestroyArray(pmZ);
    mxDestroyArray(pmAns);
    mclTerminateApplication();
    printf("Hello World");
    return 0;
}

推荐答案

好吧，因为您没有指出消息所引用的代码行，所以对您的帮助并不容易.另外，我建议您先在MATLAB论坛上发布此问题，因为您可能会在那里找到更多专家.

Well since you did not indicate which lines of code the messages refer to it is not very easy to help you. Also I would suggest you post this question on the MATLAB forum first as you are likely to find more experts there.

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