Ruby 2.4 unifies Fixnum and Bignum into Integer
Ruby uses Fixnum class for representing small numbers and Bignum class for big numbers. 1# Before Ruby 2.4 2 31.class #=> Fixnum 4(2 ** 62).class #=> BignumCopy In general routine work we don't have to worry about whether the number we are dealing with is Bignum or Fixnum. It's just an implementation detail. Interestingly, Ruby also has Integer class which is superclass for Fixnum and Bignum. Star
Deoptimization Engine by shyouhei · Pull Request #1419 · ruby/ruby
Abstract Implemented a way to optimize ruby's executions and to revert them. The strategy is restricted so that any VM states like program counter(s) would not be affected by the modifications. This restriction makes deoptimize much lightweight. Experiments show optimizations on this mechanism speeds up micro benchmarks, yet has no significant overheads for pitfall-ish activities, like eval. Intro
Behavior changes in Ruby 2.4
The first preview version of Ruby 2.4 was released a few days ago. This particular release includes a bunch of new features. Moreover, it introduces some fixes and changes that are not entirely backward compatible. Thus, we need to pay close attention to these differences in this new version of Ruby. In this post, we’ll focus on some remarkable changes in behavior, so as to better understand how o
Ruby 2.4.0-preview1 Released
Posted by naruse on 20 Jun 2016 We are pleased to announce the release of Ruby 2.4.0-preview1. Ruby 2.4.0-preview1 is the first preview of Ruby 2.4.0. This preview1 is released earlier than usual because it includes so many new features and improvements. Feel free to send feedback since you can still change the features. Unify Fixnum and Bignum into Integer Though ISO/IEC 30170:2012 doesn’t specif
[Feature #12005] Unify Fixnum and Bignum into Integer · ruby/ruby@f9727c1
* [Feature #12005] Unify Fixnum and Bignum into Integer * include/ruby/ruby.h (rb_class_of): Return rb_cInteger for fixnums. * insns.def (INTEGER_REDEFINED_OP_FLAG): Unified from FIXNUM_REDEFINED_OP_FLAG and BIGNUM_REDEFINED_OP_FLAG. * vm_core.h: Ditto. * vm_insnhelper.c (opt_eq_func): Use INTEGER_REDEFINED_OP_FLAG instead of FIXNUM_REDEFINED_OP_FLAG. * vm.c (vm_redefinition_check_flag): Use rb_cI
![[Feature #12005] Unify Fixnum and Bignum into Integer · ruby/ruby@f9727c1](https://cdn-ak-scissors.b.st-hatena.com/image/square/39934bce5cd223124565eb32fc5545203887484a/height=288;version=1;width=512/https%3A%2F%2Fopengraph.githubassets.com%2F1886fcc73a919ee58aff9bcefa0f20b96985bfb7bfaefcf196726342836f6f87%2Fruby%2Fruby%2Fcommit%2Ff9727c12cc8fbc5f752f5983be1f14bb976e5a13)
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Feature #12005: Unify Fixnum and Bignum into Integer - Ruby master - Ruby Issue Tracking System
