update swig on windows

winx64/bin/swigwin-4.0.0/Examples/d/funcptr/Makefile

@@ -0,0 +1 @@
+include ../example.mk

winx64/bin/swigwin-4.0.0/Examples/d/funcptr/d1/runme.d

@@ -0,0 +1,42 @@
+module runme;
+
+import tango.io.Stdout;
+static import example;
+
+extern(C) int add(int a, int b) {
+  return a + b;
+}
+
+extern(C) int sub(int a, int b) {
+  return a - b;
+}
+
+extern(C) int mul(int a, int b) {
+  return a * b;
+}
+
+void main() {
+  int a = 37;
+  int b = 42;
+
+  Stdout( "a = " )( a ).newline;
+  Stdout( "b = " )( b ).newline;
+
+  Stdout( "Trying some C callback functions:" ).newline;
+  Stdout( "    ADD(a,b) = " )( example.do_op( a, b, example.ADD ) ).newline;
+  Stdout( "    SUB(a,b) = " )( example.do_op( a, b, example.SUB ) ).newline;
+  Stdout( "    MUL(a,b) = " )( example.do_op( a, b, example.MUL ) ).newline;
+
+  version (LDC) {
+    // Currently, there is no way to specify the calling convention for
+    // function pointer parameters in D, but LDC does strict typechecking for
+    // them (which is reasonable, but not covered by the language spec yet).
+    // As a result, there is no way to make the code below compile with LDC at
+    // the moment, so just skip it.
+  } else {
+    Stdout( "Now the same with callback functions defined in D:" ).newline;
+    Stdout( "    add(a,b) = " )( example.do_op( a, b, &add ) ).newline;
+    Stdout( "    sub(a,b) = " )( example.do_op( a, b, &sub ) ).newline;
+    Stdout( "    mul(a,b) = " )( example.do_op( a, b, &mul ) ).newline;
+  }
+}

winx64/bin/swigwin-4.0.0/Examples/d/funcptr/d2/runme.d

@@ -0,0 +1,34 @@
+module runme;
+
+import std.stdio;
+static import example;
+
+extern(C) int add(int a, int b) {
+  return a + b;
+}
+
+extern(C) int sub(int a, int b) {
+  return a - b;
+}
+
+extern(C) int mul(int a, int b) {
+  return a * b;
+}
+
+void main() {
+  int a = 37;
+  int b = 42;
+
+  writefln( "a = %s", a );
+  writefln( "b = %s", b );
+
+  writeln( "Trying some C callback functions:" );
+  writefln( "    ADD(a,b) = %s", example.do_op( a, b, example.ADD ) );
+  writefln( "    SUB(a,b) = %s", example.do_op( a, b, example.SUB ) );
+  writefln( "    MUL(a,b) = %s", example.do_op( a, b, example.MUL ) );
+
+  writeln( "Now the same with callback functions defined in D:" );
+  writefln( "    add(a,b) = %s", example.do_op( a, b, &add ) );
+  writefln( "    sub(a,b) = %s", example.do_op( a, b, &sub ) );
+  writefln( "    mul(a,b) = %s", example.do_op( a, b, &mul ) );
+}

winx64/bin/swigwin-4.0.0/Examples/d/funcptr/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/d/funcptr/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/d/funcptr/example.i

@@ -0,0 +1,16 @@
+/* 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 */
+%constant int (*ADD)(int,int) = add;
+%constant int (*SUB)(int,int) = sub;
+%constant int (*MUL)(int,int) = mul;
+
+extern int (*funcvar)(int,int);
+