Method: Integer#allbits?

Defined in:
numeric.c

#allbits?(mask) ⇒ Boolean

Returns true if all bits that are set (=1) in mask are also set in self; returns false otherwise.

Example values:

0b1010101  self
0b1010100  mask
0b1010100  self & mask
     true  self.allbits?(mask)

0b1010100  self
0b1010101  mask
0b1010100  self & mask
    false  self.allbits?(mask)

Related: Integer#anybits?, Integer#nobits?.

Returns:

  • (Boolean) 


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# File 'numeric.c', line 3680

static VALUE
int_allbits_p(VALUE num, VALUE mask)
{
    mask = rb_to_int(mask);
    return rb_int_equal(rb_int_and(num, mask), mask);
}