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swig/Lib/typemaps/carrays.swg

Index: swig/Lib/typemaps/carrays.swg
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--- swig/Lib/typemaps/carrays.swg	(revision 0)
+++ swig/Lib/typemaps/carrays.swg	(revision 0)
@@ -0,0 +1,117 @@
+/* -----------------------------------------------------------------------------
+ * See the LICENSE file for information on copyright, usage and redistribution
+ * of SWIG, and the README file for authors - http://www.swig.org/release.html.
+ *
+ * carrays.swg
+ *
+ * This library file contains macros that can be used to manipulate simple
+ * pointers as arrays.
+ * ----------------------------------------------------------------------------- */
+
+/* -----------------------------------------------------------------------------
+ * %array_functions(TYPE,NAME)
+ *
+ * Generates functions for creating and accessing elements of a C array
+ * (as pointers).  Creates the following functions:
+ *
+ *        TYPE *new_NAME(int nelements)
+ *        void delete_NAME(TYPE *);
+ *        TYPE NAME_getitem(TYPE *, int index);
+ *        void NAME_setitem(TYPE *, int index, TYPE value);
+ * 
+ * ----------------------------------------------------------------------------- */
+
+%define %array_functions(TYPE,NAME) 
+%{
+  static TYPE *new_##NAME(size_t nelements) { 
+    return %new_array(nelements, TYPE);
+  }
+
+  static void delete_##NAME(TYPE *ary) {
+    %delete_array(ary);
+  }
+
+  static TYPE NAME##_getitem(TYPE *ary, size_t index) {
+    return ary[index];
+  }
+  static void NAME##_setitem(TYPE *ary, size_t index, TYPE value) {
+    ary[index] = value;
+  }
+%}
+
+TYPE *new_##NAME(size_t nelements);
+void delete_##NAME(TYPE *ary);
+TYPE NAME##_getitem(TYPE *ary, size_t index);
+void NAME##_setitem(TYPE *ary, size_t index, TYPE value);
+
+%enddef
+
+
+/* -----------------------------------------------------------------------------
+ * %array_class(TYPE,NAME)
+ *
+ * Generates a class wrapper around a C array.  The class has the following
+ * interface:
+ *
+ *          struct NAME {
+ *              NAME(int nelements);
+ *             ~NAME();
+ *              TYPE getitem(int index);
+ *              void setitem(int index, TYPE value);
+ *              TYPE * cast();
+ *              static NAME *frompointer(TYPE *t);
+ *         }
+ *
+ * Use
+ *
+ *    %array_class_wrap(TYPE,NAME,GET,SET) 
+ *
+ * if you want  different names for the get/set methods.
+ * ----------------------------------------------------------------------------- */
+
+%define %array_class_wrap(TYPE,NAME,getitem,setitem)
+%{
+typedef TYPE NAME;
+%}
+
+
+typedef struct NAME {
+} NAME;
+
+%extend NAME {
+
+  NAME(size_t nelements) {
+    return %new_array(nelements, TYPE);
+  }
+
+  ~NAME() {
+    %delete_array(self);
+  }
+  
+  TYPE getitem(size_t index) {
+    return self[index];
+  }
+
+  void setitem(size_t index, TYPE value) {
+    self[index] = value;
+  }
+
+  TYPE * cast() {
+    return self;
+  }
+
+  static NAME *frompointer(TYPE *t) {
+    return %static_cast(t, NAME *);
+  }
+};
+
+%types(NAME = TYPE);
+
+%enddef
+
+
+#ifndef %array_class
+%define %array_class(TYPE,NAME)
+  %array_class_wrap(TYPE,NAME,getitem,setitem)
+%enddef
+#endif