update swig on windows

winx64/bin/swigwin-4.0.0/Examples/python/funcptr2/Makefile

@@ -0,0 +1,22 @@
+TOP        = ../..
+SWIGEXE    = $(TOP)/../swig
+SWIG_LIB_DIR = $(TOP)/../$(TOP_BUILDDIR_TO_TOP_SRCDIR)Lib
+SRCS       = example.c
+TARGET     = example
+INTERFACE  = example.i
+
+check: build
+	$(MAKE) -f $(TOP)/Makefile SRCDIR='$(SRCDIR)' python_run
+
+build:
+	$(MAKE) -f $(TOP)/Makefile SRCDIR='$(SRCDIR)' SRCS='$(SRCS)' \
+	SWIG_LIB_DIR='$(SWIG_LIB_DIR)' SWIGEXE='$(SWIGEXE)' \
+	TARGET='$(TARGET)' INTERFACE='$(INTERFACE)' python
+
+static:
+	$(MAKE) -f $(TOP)/Makefile SRCDIR='$(SRCDIR)' SRCS='$(SRCS)' \
+	SWIG_LIB_DIR='$(SWIG_LIB_DIR)' SWIGEXE='$(SWIGEXE)' \
+	TARGET='mypython' INTERFACE='$(INTERFACE)' python_static
+
+clean:
+	$(MAKE) -f $(TOP)/Makefile SRCDIR='$(SRCDIR)' TARGET='$(TARGET)' python_clean

winx64/bin/swigwin-4.0.0/Examples/python/funcptr2/example.c

@@ -0,0 +1,19 @@
+/* File : example.c */
+
+int do_op(int a, int b, int (*op)(int,int)) {
+  return (*op)(a,b);
+}
+
+int add(int a, int b) {
+  return a+b;
+}
+
+int sub(int a, int b) {
+  return a-b;
+}
+
+int mul(int a, int b) {
+  return a*b;
+}
+
+int (*funcvar)(int,int) = add;

winx64/bin/swigwin-4.0.0/Examples/python/funcptr2/example.h

@@ -0,0 +1,9 @@
+/* file: example.h */
+
+extern int do_op(int,int, int (*op)(int,int));
+extern int add(int,int);
+extern int sub(int,int);
+extern int mul(int,int);
+
+extern int (*funcvar)(int,int);
+

winx64/bin/swigwin-4.0.0/Examples/python/funcptr2/example.i

@@ -0,0 +1,18 @@
+/* File : example.i */
+%module example
+%{
+#include "example.h"
+%}
+
+/* Wrap a function taking a pointer to a function */
+extern int  do_op(int a, int b, int (*op)(int, int));
+
+/* Now install a bunch of "ops" as constants */
+%callback("%(upper)s");
+int add(int, int);
+int sub(int, int);
+int mul(int, int);
+%nocallback;
+
+extern int (*funcvar)(int,int);
+

winx64/bin/swigwin-4.0.0/Examples/python/funcptr2/runme.py

@@ -0,0 +1,24 @@
+# file: runme.py
+
+import example
+
+a = 37
+b = 42
+
+# Now call our C function with a bunch of callbacks
+
+print "Trying some C callback functions"
+print "    a        =", a
+print "    b        =", b
+print "    ADD(a,b) =", example.do_op(a, b, example.ADD)
+print "    SUB(a,b) =", example.do_op(a, b, example.SUB)
+print "    MUL(a,b) =", example.do_op(a, b, example.MUL)
+
+print "Here is what the C callback function objects look like in Python"
+print "    ADD      =", example.ADD
+print "    SUB      =", example.SUB
+print "    MUL      =", example.MUL
+
+print "Call the functions directly..."
+print "    add(a,b) =", example.add(a, b)
+print "    sub(a,b) =", example.sub(a, b)