diff options
Diffstat (limited to 'numeric.c')
-rw-r--r-- | numeric.c | 42 |
1 files changed, 42 insertions, 0 deletions
@@ -3166,6 +3166,45 @@ int_even_p(VALUE num) } /* + * call-seq: + * int.allbits?(mask) -> true or false + * + * Returns +true+ if all bits of <code>+int+ & +mask+</code> is 1. + */ + +static VALUE +int_allbits_p(VALUE num, VALUE mask) +{ + return rb_int_equal(rb_int_and(num, mask), mask); +} + +/* + * call-seq: + * int.anybits?(mask) -> true or false + * + * Returns +true+ if any bits of <code>+int+ & +mask+</code> is 1. + */ + +static VALUE +int_anybits_p(VALUE num, VALUE mask) +{ + return num_zero_p(rb_int_and(num, mask)) ? Qfalse : Qtrue; +} + +/* + * call-seq: + * int.nobits?(mask) -> true or false + * + * Returns +true+ if no bits of <code>+int+ & +mask+</code> is 1. + */ + +static VALUE +int_nobits_p(VALUE num, VALUE mask) +{ + return num_zero_p(rb_int_and(num, mask)); +} + +/* * Document-method: Integer#succ * Document-method: Integer#next * call-seq: @@ -5352,6 +5391,9 @@ Init_Numeric(void) rb_define_method(rb_cInteger, "integer?", int_int_p, 0); rb_define_method(rb_cInteger, "odd?", rb_int_odd_p, 0); rb_define_method(rb_cInteger, "even?", int_even_p, 0); + rb_define_method(rb_cInteger, "allbits?", int_allbits_p, 1); + rb_define_method(rb_cInteger, "anybits?", int_anybits_p, 1); + rb_define_method(rb_cInteger, "nobits?", int_nobits_p, 1); rb_define_method(rb_cInteger, "upto", int_upto, 1); rb_define_method(rb_cInteger, "downto", int_downto, 1); rb_define_method(rb_cInteger, "times", int_dotimes, 0); |