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/* (C) Guenter Geiger <geiger@epy.co.at> */
#include <m_pd.h>
#include <math.h>
#include <string.h>
#ifdef _MSC_VER
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif
/* ------------------------ constant ----------------------------- */
#ifndef M_PI
#define M_PI 3.141593f
#endif
static t_class *constant_class;
typedef struct _constant
{
t_object x_obj;
t_float x_constant;
} t_constant;
void constant_bang(t_constant *x)
{
outlet_float(x->x_obj.ob_outlet, x->x_constant);
}
static void *constant_new(t_symbol* s)
{
t_constant *x = (t_constant *)pd_new(constant_class);
if (s == &s_)
x->x_constant = M_PI;
else if (!strcmp(s->s_name,"pi"))
x->x_constant = M_PI;
else if (!strcmp(s->s_name,"2pi"))
x->x_constant = 2*M_PI;
else if (!strcmp(s->s_name,"e"))
x->x_constant = exp(1.0);
else if (!strcmp(s->s_name,"M_PI"))
x->x_constant = M_PI;
else if (!strcmp(s->s_name,"PI"))
x->x_constant = M_PI;
else if (!strcmp(s->s_name,"TWOPI"))
x->x_constant = 2*M_PI;
else
pd_error(x, "Unsupported constant '%s'", s->s_name);
outlet_new(&x->x_obj, &s_float);
return (x);
}
void constant_setup(void)
{
constant_class = class_new(gensym("constant"),
(t_newmethod)constant_new,
0,
sizeof(t_constant),
0,
A_DEFSYMBOL,
0);
class_addbang(constant_class,constant_bang);
}
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