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| -rw-r--r-- | NEWS | 10 |
1 files changed, 6 insertions, 4 deletions
@@ -121,10 +121,12 @@ with all sufficient information, see the ChangeLog file or Redmine For example, 0 is an instance of Integer: 0.class returns Integer. The constants Fixnum and Bignum is bound to Integer. So obj.kind_of?(Fixnum) works as obj.kind_of?(Integer). - At C-level, rb_cFixnum and rb_cBignum is same as rb_cInteger. - So, class based dispatch, such as klass == rb_cFixnum and - klass == rb_cBignum, should be changed to FIXNUM_P(obj) and - RB_TYPE_P(obj, T_BIGNUM). + At C-level, Fixnum object and Bignum object should be distinguished by + FIXNUM_P(obj) and RB_TYPE_P(obj, T_BIGNUM). + ruby-2.4.0-preview1 (temporally) removes rb_cFixnum and rb_cBignum + to check the effect of incompatibility. + (rb_cFixnum and rb_cBignum may be defined as rb_cInteger later if + compilation failure of extension library is too big problem.) * String/Symbol#upcase/downcase/swapcase/capitalize(!) now work for all of Unicode, not only for ASCII. [Feature #10085] |