Add support for the Go programming language.

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@12108 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/go/reference/runme.go

@@ -0,0 +1,71 @@
+// This example illustrates the manipulation of C++ references in Java.
+
+package main
+
+import (
+	"fmt"
+	. "./example"
+)
+
+func main() {
+	fmt.Println("Creating some objects:")
+	a := NewVector(3, 4, 5)
+	b := NewVector(10, 11, 12)
+
+	fmt.Println("    Created ", a.Print())
+	fmt.Println("    Created ", b.Print())
+
+	// ----- Call an overloaded operator -----
+
+	// This calls the wrapper we placed around
+	//
+	//      operator+(const Vector &a, const Vector &)
+	//
+	// It returns a new allocated object.
+
+	fmt.Println("Adding a+b")
+	c := Addv(a, b)
+	fmt.Println("    a+b = " + c.Print())
+
+	// Because addv returns a reference, Addv will return a
+	// pointer allocated using Go's memory allocator.  That means
+	// that it will be freed by Go's garbage collector, and we can
+	// not use DeleteVector to release it.
+
+	c = nil
+
+	// ----- Create a vector array -----
+
+	fmt.Println("Creating an array of vectors")
+	va := NewVectorArray(10)
+	fmt.Println("    va = ", va)
+
+	// ----- Set some values in the array -----
+
+	// These operators copy the value of Vector a and Vector b to
+	// the vector array
+	va.Set(0, a)
+	va.Set(1, b)
+
+	va.Set(2, Addv(a, b))
+
+	// Get some values from the array
+
+	fmt.Println("Getting some array values")
+	for i := 0; i < 5; i++ {
+		fmt.Println("    va(", i, ") = ", va.Get(i).Print())
+	}
+
+	// Watch under resource meter to check on this
+	fmt.Println("Making sure we don't leak memory.")
+	for i := 0; i < 1000000; i++ {
+		c = va.Get(i % 10)
+	}
+
+	// ----- Clean up ----- This could be omitted. The garbage
+	// collector would then clean up for us.
+	fmt.Println("Cleaning up")
+	DeleteVectorArray(va)
+	DeleteVector(a)
+	DeleteVector(b)
+}