From d6b088044e161a27d49df537bbb6d998a8d0e50d Mon Sep 17 00:00:00 2001
From: musil <tmusil@users.sourceforge.net>
Date: Sat, 9 Dec 2006 02:00:52 +0000
Subject: // class_sethelpsymbol(); changed help-*.pd to *-help.pd chanded file
 structure to standard 1st step remove old

svn path=/trunk/externals/iemlib/; revision=6756
---
 iemlib2/src/round_zero.c | 60 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)
 create mode 100644 iemlib2/src/round_zero.c

(limited to 'iemlib2/src/round_zero.c')

diff --git a/iemlib2/src/round_zero.c b/iemlib2/src/round_zero.c
new file mode 100644
index 0000000..1bd4f24
--- /dev/null
+++ b/iemlib2/src/round_zero.c
@@ -0,0 +1,60 @@
+/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
+* WARRANTIES, see the file, "LICENSE.txt," in this distribution.
+
+iemlib2 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2006 */
+
+#include "m_pd.h"
+#include "iemlib.h"
+
+
+/* ------------------------ round_zero ---------------------------- */
+/* ------ small float numbers of an anything message within ------- */
+/* ---- plus minus initial argument will be truncated to zero ----- */
+
+static t_class *round_zero_class;
+
+typedef struct _round_zero
+{
+  t_object  x_obj;
+  t_float   x_bound;
+} t_round_zero;
+
+static void round_zero_anything(t_round_zero *x, t_symbol *s, int ac, t_atom *av)
+{
+  int i;
+  t_float f, bound=x->x_bound;
+  
+  for(i=0; i<ac; i++)
+  {
+    if(IS_A_FLOAT(av, i))
+    {
+      f = atom_getfloatarg(i, ac, av);
+      if((f <= bound)&&(f >= -bound))
+      {
+        f = 0.0f;
+        SETFLOAT(av+i, f);
+      }
+    }
+  }
+  outlet_anything(x->x_obj.ob_outlet, s, ac, av);
+}
+
+static void *round_zero_new(t_floatarg bound)
+{
+  t_round_zero *x = (t_round_zero *)pd_new(round_zero_class);
+  
+    if(bound < 0.0f)
+      x->x_bound = -bound;
+    else
+      x->x_bound = bound;
+    outlet_new(&x->x_obj, &s_list);
+    return (x);
+}
+
+void round_zero_setup(void)
+{
+  round_zero_class = class_new(gensym("round_zero"), (t_newmethod)round_zero_new,
+    0, sizeof(t_round_zero), 0, A_DEFFLOAT, 0);
+  class_addanything(round_zero_class, round_zero_anything);
+//  class_sethelpsymbol(round_zero_class, gensym("iemhelp/help-round_zero"));
+}
-- 
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