1 files changed, 87 insertions, 0 deletions
diff --git a/Examples/guile/multimap/example.i b/Examples/guile/multimap/example.i
new file mode 100644
index 0000000..7337d1e
--- /dev/null
+++ b/Examples/guile/multimap/example.i
@@ -0,0 +1,87 @@
+/* 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(in) (int argc, char *argv[]) {
+  int i;
+  SCM *v;
+  if (!(SCM_NIMP($input) && SCM_VECTORP($input))) {
+    SWIG_exception(SWIG_ValueError, "Expecting a vector");
+    return 0;
+  }
+  $1 = SCM_LENGTH($input);
+  if ($1 == 0) {
+    SWIG_exception(SWIG_ValueError, "Vector must contain at least 1 element");
+  }
+  $2 = (char **) malloc(($1+1)*sizeof(char *));
+  v = SCM_VELTS($input);
+  for (i = 0; i < $1; i++) {
+    if (!(SCM_NIMP(v[i]) && SCM_STRINGP(v[i]))) {
+      free($2);	
+      SWIG_exception(SWIG_ValueError, "Vector items must be strings");
+      return 0;
+    }
+    $2[i] = SCM_CHARS(v[i]);
+  }
+  $2[i] = 0;
+}
+
+%typemap(freearg) (int argc, char *argv[]) {
+   free($2);
+}
+
+extern int gcdmain(int argc, char *argv[]);
+
+%typemap(in) (char *bytes, int len) {
+  if (!(SCM_NIMP($input) && SCM_STRINGP($input))) {
+    SWIG_exception(SWIG_ValueError, "Expecting a string");
+  }
+  $1 = SCM_CHARS($input);
+  $2 = SCM_LENGTH($input);
+}
+
+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) {
+  size_t temp;
+  $1 = gh_scm2newstr($input,&temp);
+  $2 = temp;
+}
+
+/* Return the mutated string as a new object.  */
+
+%typemap(argout) (char *str, int len) {
+  SWIG_APPEND_VALUE(gh_str2scm($1,$2));
+  if ($1) scm_must_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);
+
+