[MATLAB] Copied 'simple' example from Octave

Examples/matlab/simple/example.c

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+/* File : example.c */
+
+/* A global variable */
+double Foo = 3.0;
+
+/* Compute the greatest common divisor of positive integers */
+int gcd(int x, int y) {
+  int g;
+  g = y;
+  while (x > 0) {
+    g = x;
+    x = y % x;
+    y = g;
+  }
+  return g;
+}

Examples/matlab/simple/example.i

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+/* File : example.i */
+%module swigexample
+
+%inline %{
+extern int    gcd(int x, int y);
+extern double Foo;
+%}

Examples/matlab/simple/runme.m

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+# file: runme.m
+
+swigexample
+
+# Call our gcd() function
+
+x = 42
+y = 105
+g = swigexample.gcd(x,y)
+printf("The gcd of %d and %d is %d\n",x,y,g);
+
+# Manipulate the Foo global variable
+
+# Output its current value
+swigexample.cvar.Foo
+
+# Change its value
+swigexample.cvar.Foo = 3.1415926
+
+# See if the change took effect
+printf("Foo = %f\n", swigexample.cvar.Foo);