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winx64/bin/swig-3.0.12/Examples/octave/reference/Makefile

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+CXXSRCS = example.cxx
+
+include $(SRCDIR)../example.mk

winx64/bin/swig-3.0.12/Examples/octave/reference/example.cxx

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+/* File : example.cxx */
+
+/* Deal with Microsoft's attempt at deprecating C standard runtime functions */
+#if !defined(SWIG_NO_CRT_SECURE_NO_DEPRECATE) && defined(_MSC_VER)
+# define _CRT_SECURE_NO_DEPRECATE
+#endif
+
+#include "example.h"
+#include <stdio.h>
+#include <stdlib.h>
+
+Vector operator+(const Vector &a, const Vector &b) {
+  Vector r;
+  r.x = a.x + b.x;
+  r.y = a.y + b.y;
+  r.z = a.z + b.z;
+  return r;
+}
+
+char *Vector::print() {
+  static char temp[512];
+  sprintf(temp,"Vector %p (%g,%g,%g)", (void *)this, x,y,z);
+  return temp;
+}
+
+VectorArray::VectorArray(int size) {
+  items = new Vector[size];
+  maxsize = size;
+}
+
+VectorArray::~VectorArray() {
+  delete [] items;
+}
+
+Vector &VectorArray::operator[](int index) {
+  if ((index < 0) || (index >= maxsize)) {
+    printf("Panic! Array index out of bounds.\n");
+    exit(1);
+  }
+  return items[index];
+}
+
+int VectorArray::size() {
+  return maxsize;
+}

winx64/bin/swig-3.0.12/Examples/octave/reference/example.h

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+/* File : example.h */
+
+class Vector {
+private:
+  double x,y,z;
+public:
+  Vector() : x(0), y(0), z(0) { }
+  Vector(double x, double y, double z) : x(x), y(y), z(z) { }
+  friend Vector operator+(const Vector &a, const Vector &b);
+  char *print();
+};
+
+class VectorArray {
+private:
+  Vector *items;
+  int     maxsize;
+public:
+  VectorArray(int maxsize);
+  ~VectorArray();
+  Vector &operator[](int);
+  int size();
+};

winx64/bin/swig-3.0.12/Examples/octave/reference/example.i

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+/* File : example.i */
+
+/* This file has a few "typical" uses of C++ references. */
+
+%module swigexample
+
+%feature("autodoc", 1);
+
+%{
+#include "example.h"
+%}
+
+%rename(cprint) print;
+
+class Vector {
+public:
+    Vector(double x, double y, double z);
+   ~Vector();
+    char *print();
+};
+
+/* This helper function calls an overloaded operator */
+%inline %{
+Vector addv(Vector &a, Vector &b) {
+  return a+b;
+}
+%}
+
+/* Wrapper around an array of vectors class */
+
+class VectorArray {
+public:
+  VectorArray(int maxsize);
+  ~VectorArray();
+  int size();
+
+  /* This wrapper provides an alternative to the [] operator */
+  %extend {
+    Vector &get(int index) {
+      return (*$self)[index];
+    }
+    void set(int index, Vector &a) {
+      (*$self)[index] = a;
+    }
+  }
+};

winx64/bin/swig-3.0.12/Examples/octave/reference/runme.m

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+# do not dump Octave core
+if exist("crash_dumps_octave_core", "builtin")
+  crash_dumps_octave_core(0);
+endif
+
+# This file illustrates the manipulation of C++ references in Octave
+
+swigexample
+
+# ----- Object creation -----
+
+printf("Creating some objects:\n");
+a = swigexample.Vector(3,4,5)
+b = swigexample.Vector(10,11,12)
+
+printf("    Created %s\n",a.cprint());
+printf("    Created %s\n",b.cprint());
+
+# ----- Call an overloaded operator -----
+
+# This calls the wrapper we placed around
+#
+#      operator+(const Vector &a, const Vector &)
+#
+# It returns a new allocated object.
+
+printf("Adding a+b\n");
+c = swigexample.addv(a,b);
+printf("    a+b = %s\n", c.cprint());
+
+clear c
+
+# ----- Create a vector array -----
+
+# Note: Using the high-level interface here
+printf("Creating an array of vectors\n");
+va = swigexample.VectorArray(10)
+
+# ----- Set some values in the array -----
+
+# These operators copy the value of $a and $b to the vector array
+va.set(0,a);
+va.set(1,b);
+
+va.set(2,swigexample.addv(a,b))
+
+# Get some values from the array
+
+printf("Getting some array values\n");
+for i=0:4,
+    printf("    va(%d) = %s\n",i,va.get(i).cprint());
+end;
+
+# Watch under resource meter to check on this
+printf("Making sure we don't leak memory.\n");
+for i=0:1000000-1,
+    c = va.get(mod(i,10));
+end
+
+# ----- Clean up -----
+printf("Cleaning up\n");
+
+clear va
+clear a
+clear b