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devtools/swigwin-1.3.34/Lib/carrays.i

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+/* -----------------------------------------------------------------------------
+ * 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.i
+ *
+ * SWIG library file containing 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(int nelements) { %}
+#ifdef __cplusplus
+%{  return new TYPE[nelements]; %}
+#else
+%{  return (TYPE *) calloc(nelements,sizeof(TYPE)); %}
+#endif
+%{}
+
+static void delete_##NAME(TYPE *ary) { %}
+#ifdef __cplusplus
+%{  delete [] ary; %}
+#else
+%{  free(ary); %}
+#endif
+%{}
+
+static TYPE NAME##_getitem(TYPE *ary, int index) {
+    return ary[index];
+}
+static void NAME##_setitem(TYPE *ary, int index, TYPE value) {
+    ary[index] = value;
+}
+%}
+
+TYPE *new_##NAME(int nelements);
+void delete_##NAME(TYPE *ary);
+TYPE NAME##_getitem(TYPE *ary, int index);
+void NAME##_setitem(TYPE *ary, int 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);
+  *         }
+ *
+ * ----------------------------------------------------------------------------- */
+
+%define %array_class(TYPE,NAME)
+%{
+typedef TYPE NAME;
+%}
+typedef struct NAME {
+  /* Put language specific enhancements here */
+
+} NAME;
+
+%extend NAME {
+
+#ifdef __cplusplus
+NAME(int nelements) {
+  return new TYPE[nelements];
+}
+~NAME() {
+  delete [] self;
+}
+#else
+NAME(int nelements) {
+  return (TYPE *) calloc(nelements,sizeof(TYPE));
+}
+~NAME() {
+  free(self);
+}
+#endif
+
+TYPE getitem(int index) {
+  return self[index];
+}
+void setitem(int index, TYPE value) {
+  self[index] = value;
+}
+TYPE * cast() {
+  return self;
+}
+static NAME *frompointer(TYPE *t) {
+  return (NAME *) t;
+}
+
+};
+
+%types(NAME = TYPE);
+
+%enddef
+