Reply by andey ●April 4, 20032003-04-04
I tested a simple C++ Mex file which is:

#include <iostream.h>
#include <fstream.h>

void timestwo(double y[], double x[])
{

ofstream File;

File.open("test.str",ios::out);
File << " TEST is OK " << endl;
File.close();

y[0] = 2.0*x[0];

}

void mexFunction(...)
{
......
}

The *.dll crashed when I ran it ( although it was compiled
successfully ). There is error "Segmentation violation".
But the strange thing is that the file "test.str" was created.
I wonder if Mex file completely support all C++ class. I replaced
above codes with C, which is:

#include <stdio.h>

void timestwo(double y[], double x[])
{

FILE *fp;
fp = fopen("test.str","w");
fprintf(fp,"%d\n",x[0]);
fclose(fp);

y[0] = 2.0*x[0];

}

void mexFunction(...)
{
......
}

I ran and compiled above Mex C file. Everything is fine.

andey