1 files changed, 84 insertions, 0 deletions
diff --git a/src/minmax.c b/src/minmax.c
new file mode 100644
index 0000000..f96b025
--- /dev/null
+++ b/src/minmax.c
@@ -0,0 +1,84 @@
+/******************************************************
+ *
+ * zexy - implementation file
+ *
+ * copyleft (c) IOhannes m zmölnig
+ *
+ *   1999:forum::für::umläute:2004
+ *
+ *   institute of electronic music and acoustics (iem)
+ *
+ ******************************************************
+ *
+ * license: GNU General Public License v.2
+ *
+ ******************************************************/
+
+#include "zexy.h"
+
+/* minmax :: get minimum and maximum of a list */
+
+static t_class *minmax_class;
+
+typedef struct _minmax
+{
+  t_object x_obj;
+  t_float min;
+  t_float max;
+
+  t_outlet *mino, *maxo;
+} t_minmax;
+
+static void minmax_bang(t_minmax *x)
+{
+  outlet_float(x->maxo,x->max);
+  outlet_float(x->mino,x->min);
+}
+
+static void minmax_list(t_minmax *x, t_symbol *s, int argc, t_atom *argv)
+{
+  t_float min = atom_getfloat(argv++);
+  t_float max=min;
+  argc--;
+
+  while(argc--){
+    t_float f = atom_getfloat(argv++);
+    if (f<min)min=f;
+    else if (f>max)max=f;
+  }
+
+  x->min=min;
+  x->max=max;
+
+  minmax_bang(x);
+}
+
+static void *minmax_new(void)
+{
+  t_minmax *x = (t_minmax *)pd_new(minmax_class);
+
+  x->mino=outlet_new(&x->x_obj, gensym("float"));
+  x->maxo=outlet_new(&x->x_obj, gensym("float"));
+
+  x->min = x->max = 0;
+
+  return (x);
+}
+
+static void minmax_help(void)
+{
+  post("minmax\t:: get minimum and maximum of a list of floats");
+}
+
+void minmax_setup(void)
+{
+  minmax_class = class_new(gensym("minmax"), (t_newmethod)minmax_new, 0,
+			 sizeof(t_minmax), 0, A_DEFFLOAT, 0);
+
+  class_addlist(minmax_class, (t_method)minmax_list);
+  class_addbang(minmax_class, (t_method)minmax_bang);
+  class_addmethod(minmax_class, (t_method)minmax_help, gensym("help"), 0);
+
+  class_sethelpsymbol(minmax_class, gensym("zexy/minmax"));
+  zexy_register("minmax");
+}