+
−#include "mex.h"
+
−
+
−void
+
−mexFunction (int nlhs, mxArray* plhs[],
+
−             int nrhs, const mxArray* prhs[])
+
−{
+
−  char *str;
+
−  mxArray *v;
+
−
+
−  if (nrhs != 2 || ! mxIsString (prhs[0]))
+
−    mexErrMsgTxt ("expects symbol name and value");
+
−
+
−  str = mxArrayToString (prhs[0]);
+
−
+
−  v = mexGetArray (str, "global");
+
−
+
−  if (v)
+
−    {
+
−      mexPrintf ("%s is a global variable with the following value:\n", str);
+
−      mexCallMATLAB (0, NULL, 1, &v, "disp");
+
−    }
+
−
+
−  v = mexGetArray (str, "caller");
+
−
+
−  if (v)
+
−    {
+
−      mexPrintf ("%s is a caller variable with the following value:\n", str);
+
−      mexCallMATLAB (0, NULL, 1, &v, "disp");
+
−    }
+
−
+
−  // WARNING!! Can't do this in MATLAB!  Must copy variable first.
+
−  mxSetName (prhs[1], str);  
+
−  mexPutArray (prhs[1], "caller");
+
−}