update swig on windows

winx64/bin/swigwin-4.0.0/Examples/lua/exception/runme.lua

@@ -0,0 +1,96 @@
+-- file: example.lua
+
+---- importing ----
+if string.sub(_VERSION,1,7)=='Lua 5.0' then
+	-- lua5.0 doesn't have a nice way to do this
+	lib=loadlib('example.dll','luaopen_example') or loadlib('example.so','luaopen_example')
+	assert(lib)()
+else
+	-- lua 5.1 does
+	require('example')
+end
+
+-- throw a lot of exceptions:
+-- you must catch exceptions using pcall and then checking the result
+
+t = example.Test()
+
+print "calling t:unknown()"
+ok,res=pcall(function() t:unknown() end)
+if ok then 
+    print "  that worked! Funny"
+else
+    print("  call failed with error:",res)
+end
+
+print "calling t:simple()"
+ok,res=pcall(function() t:simple() end)
+if ok then 
+    print "  that worked! Funny"
+else
+    print("  call failed with error:",res)
+end
+
+print "calling t:message()"
+ok,res=pcall(function() t:message() end)
+if ok then 
+    print "  that worked! Funny"
+else
+    print("  call failed with error:",res)
+end
+
+print "calling t:hosed()"
+ok,res=pcall(function() t:hosed() end)
+if ok then 
+    print "  that worked! Funny"
+else
+    print("  call failed with error:",res.code,res.msg)
+end
+
+-- this is a rather strange way to perform the multiple catch of exceptions
+print "calling t:multi()"
+for i=1,3 do
+    ok,res=pcall(function() t:multi(i) end)
+    if ok then
+        print "  that worked! Funny"
+    else
+        if swig_type(res)=="Exc *" then
+            print("  call failed with Exc exception:",res.code,res.msg)
+        else
+            print("  call failed with error:",res)
+        end
+    end
+end
+
+-- this is a bit crazy, but it shows obtaining of the stacktrace
+function a() 
+    b() 
+end
+function b() 
+    t:message()
+end
+print [[
+Now let's call function a()
+ which calls b() 
+ which calls into C++
+ which will throw an exception!]]
+ok,res=pcall(a)
+if ok then 
+    print "  that worked! Funny"
+else
+    print("  call failed with error:",res)
+end
+print "Now let's do the same using xpcall(a,debug.traceback)"
+ok,res=xpcall(a,debug.traceback)
+if ok then 
+    print "  that worked! Funny"
+else
+    print("  call failed with error:",res)
+end
+print "As you can see, the xpcall gives a nice stacktrace to work with"
+
+
+ok,res=pcall(a)
+print(ok,res)
+ok,res=xpcall(a,debug.traceback)
+print(ok,res)