1 files changed, 48 insertions, 0 deletions
diff --git a/cyclone/hammer/asin.c b/cyclone/hammer/asin.c
new file mode 100644
index 0000000..0aa8db7
--- /dev/null
+++ b/cyclone/hammer/asin.c
@@ -0,0 +1,48 @@
+/* Copyright (c) 2002-2003 krzYszcz and others.
+ * For information on usage and redistribution, and for a DISCLAIMER OF ALL
+ * WARRANTIES, see the file, "LICENSE.txt," in this distribution.  */
+
+#include <math.h>
+#include "m_pd.h"
+
+#if defined(NT) || defined(MACOSX)
+/* cf pd/src/x_arithmetic.c */
+#define asinf  asin
+#endif
+
+typedef struct _asin
+{
+    t_object  x_ob;
+    float     x_value;
+} t_asin;
+
+static t_class *asin_class;
+
+static void asin_bang(t_asin *x)
+{
+    outlet_float(((t_object *)x)->ob_outlet, x->x_value);
+}
+
+static void asin_float(t_asin *x, t_float f)
+{
+    if (f < -1.0) f = -1.0; else if (f > 1.0) f = 1.0;  /* CHECKME */
+    outlet_float(((t_object *)x)->ob_outlet, x->x_value = asinf(f));
+}
+
+static void *asin_new(t_floatarg f)
+{
+    t_asin *x = (t_asin *)pd_new(asin_class);
+    if (f < -1.0) f = -1.0; else if (f > 1.0) f = 1.0;  /* CHECKME */
+    x->x_value = asinf(f);
+    outlet_new((t_object *)x, &s_float);
+    return (x);
+}
+
+void asin_setup(void)
+{
+    asin_class = class_new(gensym("asin"),
+			   (t_newmethod)asin_new, 0,
+			   sizeof(t_asin), 0, A_DEFFLOAT, 0);
+    class_addbang(asin_class, asin_bang);
+    class_addfloat(asin_class, asin_float);
+}