80 lines
2.4 KiB
C
80 lines
2.4 KiB
C
#include <limits.h>
|
|
#include <mruby.h>
|
|
#include <mruby/numeric.h>
|
|
|
|
/*
|
|
* call-seq:
|
|
* int.allbits?(mask) -> true or false
|
|
*
|
|
* Returns +true+ if all bits of <code>+int+ & +mask+</code> are 1.
|
|
*/
|
|
static mrb_value
|
|
mrb_int_allbits(mrb_state *mrb, mrb_value self)
|
|
{
|
|
mrb_int n, m;
|
|
|
|
mrb_get_args(mrb, "i", &m);
|
|
n = mrb_int(mrb, self);
|
|
return mrb_bool_value((n & m) == m);
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* int.anybits?(mask) -> true or false
|
|
*
|
|
* Returns +true+ if any bits of <code>+int+ & +mask+</code> are 1.
|
|
*/
|
|
static mrb_value
|
|
mrb_int_anybits(mrb_state *mrb, mrb_value self)
|
|
{
|
|
mrb_int n, m;
|
|
|
|
mrb_get_args(mrb, "i", &m);
|
|
n = mrb_int(mrb, self);
|
|
return mrb_bool_value((n & m) != 0);
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* int.nobits?(mask) -> true or false
|
|
*
|
|
* Returns +true+ if no bits of <code>+int+ & +mask+</code> are 1.
|
|
*/
|
|
static mrb_value
|
|
mrb_int_nobits(mrb_state *mrb, mrb_value self)
|
|
{
|
|
mrb_int n, m;
|
|
|
|
mrb_get_args(mrb, "i", &m);
|
|
n = mrb_int(mrb, self);
|
|
return mrb_bool_value((n & m) == 0);
|
|
}
|
|
|
|
void
|
|
mrb_mruby_numeric_ext_gem_init(mrb_state* mrb)
|
|
{
|
|
struct RClass *i = mrb_module_get(mrb, "Integral");
|
|
|
|
mrb_define_method(mrb, i, "allbits?", mrb_int_allbits, MRB_ARGS_REQ(1));
|
|
mrb_define_method(mrb, i, "anybits?", mrb_int_anybits, MRB_ARGS_REQ(1));
|
|
mrb_define_method(mrb, i, "nobits?", mrb_int_nobits, MRB_ARGS_REQ(1));
|
|
|
|
#ifndef MRB_WITHOUT_FLOAT
|
|
mrb_define_const(mrb, mrb->float_class, "RADIX", mrb_fixnum_value(MRB_FLT_RADIX));
|
|
mrb_define_const(mrb, mrb->float_class, "MANT_DIG", mrb_fixnum_value(MRB_FLT_MANT_DIG));
|
|
mrb_define_const(mrb, mrb->float_class, "EPSILON", mrb_float_value(mrb, MRB_FLT_EPSILON));
|
|
mrb_define_const(mrb, mrb->float_class, "DIG", mrb_fixnum_value(MRB_FLT_DIG));
|
|
mrb_define_const(mrb, mrb->float_class, "MIN_EXP", mrb_fixnum_value(MRB_FLT_MIN_EXP));
|
|
mrb_define_const(mrb, mrb->float_class, "MIN", mrb_float_value(mrb, MRB_FLT_MIN));
|
|
mrb_define_const(mrb, mrb->float_class, "MIN_10_EXP", mrb_fixnum_value(MRB_FLT_MIN_10_EXP));
|
|
mrb_define_const(mrb, mrb->float_class, "MAX_EXP", mrb_fixnum_value(MRB_FLT_MAX_EXP));
|
|
mrb_define_const(mrb, mrb->float_class, "MAX", mrb_float_value(mrb, MRB_FLT_MAX));
|
|
mrb_define_const(mrb, mrb->float_class, "MAX_10_EXP", mrb_fixnum_value(MRB_FLT_MAX_10_EXP));
|
|
#endif /* MRB_WITHOUT_FLOAT */
|
|
}
|
|
|
|
void
|
|
mrb_mruby_numeric_ext_gem_final(mrb_state* mrb)
|
|
{
|
|
}
|