update swig on windows

winx64/bin/swigwin-4.0.0/Examples/test-suite/ruby/swig_gc.rb

@@ -0,0 +1,70 @@
+#!/usr/bin/env ruby
+#
+#
+# VERY nice function from Robert Klemme to check memory leaks
+# and check on what GC has collected since last call.
+#
+# Usage can be:
+#
+#     require 'swig_gc'
+#
+#     GC.stats
+#     # do some stuff..
+#     GC.start  # collect and report stats
+#     # do some more...
+#     GC.stats  # just report stats
+#
+# or:
+#
+#     require 'swig_gc'
+#
+#     GC.track_class = String  # track just String classes
+#     GC.stats
+#     # do some stuff..
+#     GC.start  # collect and report stats
+#     # do some more...
+#     GC.stats  # just report stats
+#
+# 
+# 
+# 
+#
+
+module GC
+
+  class << self
+      
+    attr          :last_stat
+    attr_accessor :track_class
+
+    alias :_start :start
+    
+    def start
+      _start
+      stats if $VERBOSE
+    end
+    
+    def stats
+      stats = Hash.new(0)
+      ObjectSpace.each_object {|o| stats[o.class] += 1}
+      
+      if track_class
+        v = stats[track_class]
+        printf "\t%-30s  %10d", track_class.to_s, v
+        if last_stat
+          printf " | delta %10d", (v - last_stat[track_class])
+        end
+        puts
+      else
+        stats.sort {|(k1,v1),(k2,v2)| v2 <=> v1}.each do |k,v|
+          printf "\t%-30s  %10d", k, v
+          printf " | delta %10d", (v - last_stat[k]) if last_stat
+          puts
+        end
+      end
+        
+      last_stat = stats
+    end
+  end
+  
+end