\matlab\ex​tern\inclu​de\matrix.​h(604) : error C2143: syntax error : missing ')' before 'constant',what happen to this ?

#include <iostream>
#include <fstream>
#include <cstring>
#define pi 3.1415926
#define g 9.8065
#define sigma 75
#define delroe 9.80675e2
#define H0 -6.05
#define step 0.0000008
#include "sline.h"
#include <vector>
#include "mex.h"
#include <cmath>
using namespace std;
void thetap(Sline & snplus, Sline & sn){
  double a;
  a =0.5*delroe*g*sn.endy()/sigma;
  snplus.setangle(sn.angle() + (a + H0)*sn.dis());
  snplus.setstx(sn.endx());
  snplus.setsty(sn.endy());
}
void mexFunction(int nlhs, mxArray *plhs[], int nrhs, mxArray *prhs[]){
  Sline init(0, step, 0, 0);
  vector<Sline> a(1);
  a[0] = init;
  double ang = mxGetScalar(prhs[0]);
  do{
    Sline *c = new Sline;
    c->setdis(step);
    a.push_back(*c);
    thetap(*(a.end() - 1), *(a.end() - 2));
  } while ((a.end() - 1)->angle() * 180.00 / pi > ang);
  auto m = a.size();
  plhs[0] = mxCreateDoubleMatrix(int(m), 1, mxREAL);
  plhs[1] = mxCreateDoubleMatrix(int(m), 1, mxREAL);
  double *outdataone = mxGetPr(plhs[0]);
  double *outdatatwo = mxGetPr(plhs[1]);
  for (int i = 0; i < int(m); i++)
  {
    outdataone[i] = a[i].startx();
    outdatatwo[i] = a[i].starty();
  }
}

Answer 1

[James Tursa]

Can you compile a bare bones file? E.g.,

#include "mex.h"
void mexFunction(int nlhs, mxArray *plhs[], int nrhs, mxArray *prhs[]){
}

If so, maybe something in your other files is clobbering something in the mex header files. Try moving the #include "mex.h" to the front of the file.