update swig on windows

winx64/bin/swigwin-4.0.0/Examples/perl5/multimap/example.i

@@ -0,0 +1,93 @@
+/* File : example.i */
+%module example
+
+%{
+extern int gcd(int x, int y);
+extern int gcdmain(int argc, char *argv[]);
+extern int count(char *bytes, int len, char c);
+extern void capitalize (char *str, int len);
+extern void circle (double cx, double cy);
+extern int squareCubed (int n, int *OUTPUT);
+%}
+
+%include exception.i
+%include typemaps.i
+
+extern int    gcd(int x, int y);
+
+%typemap(arginit) (int argc, char *argv[]) "$2 = 0;";
+
+%typemap(in) (int argc, char *argv[]) {
+  AV *tempav;
+  SV **tv;
+  I32 len;
+  int i;
+  if (!SvROK($input)) {
+    SWIG_exception(SWIG_ValueError,"$input is not an array.");
+  }
+  if (SvTYPE(SvRV($input)) != SVt_PVAV) {
+    SWIG_exception(SWIG_ValueError,"$input is not an array.");
+  }
+  tempav = (AV*)SvRV($input);
+  len = av_len(tempav);
+  $1 = (int) len+1;
+  $2 = (char **) malloc(($1+1)*sizeof(char *));
+  for (i = 0; i < $1; i++) {
+    tv = av_fetch(tempav, i, 0);
+    $2[i] = (char *) SvPV(*tv,PL_na);
+  }
+  $2[i] = 0;
+}
+
+%typemap(freearg) (int argc, char *argv[]) {
+  free($2);
+}
+
+extern int gcdmain(int argc, char *argv[]);
+
+%typemap(in) (char *bytes, int len) {
+  STRLEN temp;
+  $1 = (char *) SvPV($input, temp);
+  $2 = (int) temp;
+}
+
+extern int count(char *bytes, int len, char c);
+
+
+/* This example shows how to wrap a function that mutates a string */
+
+%typemap(in) (char *str, int len) {
+  STRLEN templen;
+  char *temp;
+  temp = (char *) SvPV($input,templen);
+  $2 = (int) templen;
+  $1 = (char *) malloc($2+1);
+  memmove($1,temp,$2);
+}
+
+/* Return the mutated string as a new object.  */
+
+%typemap(argout) (char *str, int len) {
+  if (argvi >= items) {
+    EXTEND(sp,1);
+  }
+  $result = sv_newmortal();
+  sv_setpvn((SV*)ST(argvi++),$1,$2);
+  free($1);
+}   
+
+extern void capitalize(char *str, int len);
+
+/* A multi-valued constraint.  Force two arguments to lie
+   inside the unit circle */
+
+%typemap(check) (double cx, double cy) {
+   double a = $1*$1 + $2*$2;
+   if (a > 1.0) {
+	SWIG_exception(SWIG_ValueError,"$1_name and $2_name must be in unit circle");
+   }
+}
+
+extern void circle(double cx, double cy);
+
+