The great merge

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@4141 626c5289-ae23-0410-ae9c-e8d60b6d4f22

SWIG/Examples/ruby/operator/.cvsignore

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+example_wrap.cxx
+example.dll

SWIG/Examples/ruby/operator/Makefile

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+TOP        = ../..
+SWIG       = $(TOP)/../swig
+CXXSRCS    = 
+TARGET     = example
+INTERFACE  = example.i
+LIBS       = -lm
+SWIGOPT    = 
+
+all::
+	$(MAKE) -f $(TOP)/Makefile CXXSRCS='$(CXXSRCS)' SWIG='$(SWIG)' \
+	SWIGOPT='$(SWIGOPT)' TARGET='$(TARGET)' INTERFACE='$(INTERFACE)' ruby_cpp
+
+static::
+	$(MAKE) -f $(TOP)/Makefile CXXSRCS='$(CXXSRCS)' SWIG='$(SWIG)' \
+	TARGET='myruby' INTERFACE='$(INTERFACE)' ruby_cpp_static
+
+clean::
+	$(MAKE) -f $(TOP)/Makefile ruby_clean
+
+check: all

SWIG/Examples/ruby/operator/example.h

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+/* File : example.h */
+#include <math.h>
+
+class Complex {
+private:
+  double rpart, ipart;
+public:
+  Complex(double r = 0, double i = 0) : rpart(r), ipart(i) { }
+  Complex(const Complex &c) : rpart(c.rpart), ipart(c.ipart) { }
+  Complex &operator=(const Complex &c) {
+    rpart = c.rpart;
+    ipart = c.ipart;
+    return *this;
+  }
+  Complex operator+(const Complex &c) const {
+    return Complex(rpart+c.rpart, ipart+c.ipart);
+  }
+  Complex operator-(const Complex &c) const {
+    return Complex(rpart-c.rpart, ipart-c.ipart);
+  }
+  Complex operator*(const Complex &c) const {
+    return Complex(rpart*c.rpart - ipart*c.ipart,
+		   rpart*c.ipart + c.rpart*ipart);
+  }
+  Complex operator-() const {
+    return Complex(-rpart, -ipart);
+  }
+  
+  double re() const { return rpart; }
+  double im() const { return ipart; }
+};
+
+
+
+
+  

SWIG/Examples/ruby/operator/example.i

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+/* File : example.i */
+%module example
+
+%{
+#include "example.h"
+%}
+
+/* This header file is a little tough to handle because it has overloaded
+   operators and constructors.  We're going to try and deal with that here */
+
+/* Grab the original header file */
+%include "example.h"
+
+/* An output method that turns a complex into a short string */
+%extend Complex {
+   char *__str__() {
+       static char temp[512];
+       sprintf(temp,"(%g,%g)", self->re(), self->im());
+       return temp;
+   }
+};
+
+

SWIG/Examples/ruby/operator/runme.rb

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+# Operator overloading example
+require 'example'
+
+include Example
+
+a = Complex.new(2, 3)
+b = Complex.new(-5, 10)
+
+puts "a   = #{a}"
+puts "b   = #{b}"
+
+c = a + b
+puts "c   = #{c}"
+puts "a*b = #{a*b}"
+puts "a-c = #{a-c}"
+
+# This should invoke Complex's copy constructor
+e = Complex.new(a-c)
+e = a - c
+puts "e   = #{e}"
+
+# Big expression
+f = ((a+b)*(c+b*e)) + (-a)
+puts "f   = #{f}"
+