The great merge

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

Examples/ruby/std_vector/.cvsignore

@@ -0,0 +1 @@
+example_wrap.cxx

Examples/ruby/std_vector/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='$(SWIG)' \
+	SWIGOPT='$(SWIGOPT)' TARGET='myruby' INTERFACE='$(INTERFACE)' ruby_cpp_static
+
+clean::
+	$(MAKE) -f $(TOP)/Makefile ruby_clean
+
+check: all

Examples/ruby/std_vector/example.h

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+/* File : example.h */
+
+#include <vector>
+#include <algorithm>
+#include <functional>
+#include <numeric>
+
+double average(std::vector<int> v) {
+    return std::accumulate(v.begin(),v.end(),0.0)/v.size();
+}
+
+std::vector<double> half(const std::vector<double>& v) {
+    std::vector<double> w(v);
+    for (unsigned int i=0; i<w.size(); i++)
+        w[i] /= 2.0;
+    return w;
+}
+
+void halve_in_place(std::vector<double>& v) {
+    // would you believe this is the same as the above?
+    std::transform(v.begin(),v.end(),v.begin(),
+                   std::bind2nd(std::divides<double>(),2.0));
+}
+
+

Examples/ruby/std_vector/example.i

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+/* File : example.i */
+%module example
+
+%{
+#include "example.h"
+%}
+
+%include stl.i
+/* instantiate the required template specializations */
+namespace std {
+    %template(IntVector)    vector<int>;
+    %template(DoubleVector) vector<double>;
+}
+
+/* Let's just grab the original header file here */
+%include "example.h"
+

Examples/ruby/std_vector/runme.rb

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+# file: runme.rb
+
+require 'example'
+
+# Call average with a Ruby array...
+
+puts Example::average([1,2,3,4])
+
+# ... or a wrapped std::vector<int>
+
+v = Example::IntVector.new(4)
+0.upto(v.length-1) { |i| v[i] = i+1 }
+puts Example::average(v)
+
+
+# half will return a Ruby array.
+# Call it with a Ruby array...
+
+w = Example::half([1.0, 1.5, 2.0, 2.5, 3.0])
+0.upto(w.length-1) { |i| print w[i],"; " }
+puts
+
+# ... or a wrapped std::vector<double>
+
+v = Example::DoubleVector.new
+[1,2,3,4].each { |i| v.push(i) }
+w = Example::half(v)
+0.upto(w.length-1) { |i| print w[i],"; " }
+puts
+
+# now halve a wrapped std::vector<double> in place
+
+Example::halve_in_place(v)
+0.upto(v.length-1) { |i| print v[i],"; " }
+puts
+