1 files changed, 54 insertions, 0 deletions
diff --git a/desiredata/doc/6.externs/obj5.c b/desiredata/doc/6.externs/obj5.c
new file mode 100644
index 00000000..687c8e0a
--- /dev/null
+++ b/desiredata/doc/6.externs/obj5.c
@@ -0,0 +1,54 @@
+/* code for the "obj5" pd class.  This shows "gimme" arguments, which have
+variable arguments parsed by the routines (both "new" and "rats".) */
+
+#include "m_pd.h"
+ 
+typedef struct obj5
+{
+  t_object x_ob;
+} t_obj5;
+
+    /* the "rats" method is called with the selector (just "rats" again)
+    and an array of the typed areguments, which are each either a number
+    or a symbol.  We just print them out. */
+void obj5_rats(t_obj5 *x, t_symbol *selector, int argcount, t_atom *argvec)
+{
+    int i;
+    post("rats: selector %s", selector->s_name);
+    for (i = 0; i < argcount; i++)
+    {
+    	if (argvec[i].a_type == A_FLOAT)
+	    post("float: %f", argvec[i].a_w.w_float);
+    	else if (argvec[i].a_type == A_SYMBOL)
+	    post("symbol: %s", argvec[i].a_w.w_symbol->s_name);
+    }
+}
+
+t_class *obj5_class;
+
+    /* same for the "new" (creation) routine, except that we don't have
+    "x" as an argument since we have to create "x" in this routine. */
+void *obj5_new(t_symbol *selector, int argcount, t_atom *argvec)
+{
+    t_obj5 *x = (t_obj5 *)pd_new(obj5_class);
+    int i;
+    post("new: selector %s", selector->s_name);
+    for (i = 0; i < argcount; i++)
+    {
+    	if (argvec[i].a_type == A_FLOAT)
+	    post("float: %f", argvec[i].a_w.w_float);
+    	else if (argvec[i].a_type == A_SYMBOL)
+	    post("symbol: %s", argvec[i].a_w.w_symbol->s_name);
+    }
+    return (void *)x;
+}
+
+void obj5_setup(void)
+{
+    	/* We specify "A_GIMME" as creation argument for both the creation
+	routine and the method (callback) for the "rats" message.  */
+    obj5_class = class_new(gensym("obj5"), (t_newmethod)obj5_new,
+    	0, sizeof(t_obj5), 0, A_GIMME, 0);
+    class_addmethod(obj5_class, (t_method)obj5_rats, gensym("rats"), A_GIMME, 0);
+}
+