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Add `Integer#{allbits?,anybits?,nobits?}. [Ruby2.5]

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In mruby, those methods are defined in `Integral` module.
This commit is contained in:
Yukihiro "Matz" Matsumoto
2017-12-26 09:44:39 +09:00
parent 3d7141b7fe
commit 6b09692684
1 changed files with 51 additions and 0 deletions
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mrbgems/mruby-numeric-ext/src/numeric_ext.c
+51
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@@ -37,12 +37,63 @@ mrb_int_chr(mrb_state *mrb, mrb_value x)
return mrb_str_new(mrb, &c, 1);
}
/*
* 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;
n = to_int(self);
mrb_get_args(mrb, "i", &m);
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;
n = to_int(self);
mrb_get_args(mrb, "i", &m);
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;
n = to_int(self);
mrb_get_args(mrb, "i", &m);
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, "chr", mrb_int_chr, MRB_ARGS_NONE());
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));
}
void