magnitude()
Returns the absolute value of int.
(-12345).abs #=> 12345 -12345.abs #=> 12345 12345.abs #=> 12345
Integer#magnitude is an alias for Integer#abs.
VALUE rb_int_abs(VALUE num) { if (FIXNUM_P(num)) { return fix_abs(num); } else if (RB_TYPE_P(num, T_BIGNUM)) { return rb_big_abs(num); } return Qnil; }