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/* 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(_WIN32) || defined(MACOSX)
/* cf pd/src/x_arithmetic.c */
#define acosf acos
#endif
typedef struct _acos
{
t_object x_ob;
float x_value;
} t_acos;
static t_class *acos_class;
static void acos_bang(t_acos *x)
{
outlet_float(((t_object *)x)->ob_outlet, x->x_value);
}
static void acos_float(t_acos *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 = acosf(f));
}
static void *acos_new(t_floatarg f)
{
t_acos *x = (t_acos *)pd_new(acos_class);
if (f < -1.0) f = -1.0; else if (f > 1.0) f = 1.0; /* CHECKME */
x->x_value = acosf(f);
outlet_new((t_object *)x, &s_float);
return (x);
}
void acos_setup(void)
{
acos_class = class_new(gensym("acos"),
(t_newmethod)acos_new, 0,
sizeof(t_acos), 0, A_DEFFLOAT, 0);
class_addbang(acos_class, acos_bang);
class_addfloat(acos_class, acos_float);
}
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