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add bit operators ~,&,|,^ to Float class (mruby special)

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Yukihiro "Matz" Matsumoto
2016-11-22 17:36:26 +09:00
parent a70104798e
commit 740bf09740
1 changed files with 75 additions and 0 deletions
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src/numeric.c
+75
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@@ -271,6 +271,77 @@ flo_eq(mrb_state *mrb, mrb_value x)
}
}
static int64_t
value_int64(mrb_state *mrb, mrb_value x)
{
switch (mrb_type(x)) {
case MRB_TT_FIXNUM:
return (int64_t)mrb_fixnum(x);
break;
case MRB_TT_FLOAT:
return (int64_t)mrb_float(x);
default:
mrb_raise(mrb, E_TYPE_ERROR, "cannot convert to Integer");
break;
}
/* not reached */
return 0;
}
static mrb_value
int64_value(mrb_state *mrb, int64_t v)
{
if (MRB_INT_MIN <= v && v <= MRB_INT_MAX) {
return mrb_fixnum_value((mrb_int)v);
}
return mrb_float_value(mrb, (mrb_float)v);
}
static mrb_value
flo_rev(mrb_state *mrb, mrb_value x)
{
int64_t v1;
mrb_get_args(mrb, "");
v1 = (int64_t)mrb_float(x);
return int64_value(mrb, ~v1);
}
static mrb_value
flo_and(mrb_state *mrb, mrb_value x)
{
mrb_value y;
int64_t v1, v2;
mrb_get_args(mrb, "o", &y);
v1 = (int64_t)mrb_float(x);
v2 = value_int64(mrb, y);
return int64_value(mrb, v1 & v2);
}
static mrb_value
flo_or(mrb_state *mrb, mrb_value x)
{
mrb_value y;
int64_t v1, v2;
mrb_get_args(mrb, "o", &y);
v1 = (int64_t)mrb_float(x);
v2 = value_int64(mrb, y);
return int64_value(mrb, v1 | v2);
}
static mrb_value
flo_xor(mrb_state *mrb, mrb_value x)
{
mrb_value y;
int64_t v1, v2;
mrb_get_args(mrb, "o", &y);
v1 = (int64_t)mrb_float(x);
v2 = value_int64(mrb, y);
return int64_value(mrb, v1 ^ v2);
}
/* 15.2.8.3.18 */
/*
* call-seq:
@@ -1199,6 +1270,10 @@ mrb_init_numeric(mrb_state *mrb)
mrb_define_method(mrb, fl, "*", flo_mul, MRB_ARGS_REQ(1)); /* 15.2.9.3.3 */
mrb_define_method(mrb, fl, "%", flo_mod, MRB_ARGS_REQ(1)); /* 15.2.9.3.5 */
mrb_define_method(mrb, fl, "==", flo_eq, MRB_ARGS_REQ(1)); /* 15.2.9.3.7 */
mrb_define_method(mrb, fl, "~", flo_rev, MRB_ARGS_NONE());
mrb_define_method(mrb, fl, "&", flo_and, MRB_ARGS_REQ(1));
mrb_define_method(mrb, fl, "|", flo_or, MRB_ARGS_REQ(1));
mrb_define_method(mrb, fl, "^", flo_xor, MRB_ARGS_REQ(1));
mrb_define_method(mrb, fl, "ceil", flo_ceil, MRB_ARGS_NONE()); /* 15.2.9.3.8 */
mrb_define_method(mrb, fl, "finite?", flo_finite_p, MRB_ARGS_NONE()); /* 15.2.9.3.9 */
mrb_define_method(mrb, fl, "floor", flo_floor, MRB_ARGS_NONE()); /* 15.2.9.3.10 */