[#99868] [Ruby master Bug#17144] Tempfile.open { ... } does not unlink the file — eregontp@...
Issue #17144 has been reported by Eregon (Benoit Daloze).
15 messages
2020/09/03
[ruby-core:100019] [Ruby master Feature#17170] Numeric.zero, Numeric.one
From:
shyouhei@...
Date:
2020-09-16 00:11:07 UTC
List:
ruby-core #100019
Issue #17170 has been updated by shyouhei (Shyouhei Urabe). Status changed from Open to Feedback ```ruby % rbenv exec irb irb(main):001:0> require 'bigdecimal' => true irb(main):002:0> require 'bigdecimal/util' => true irb(main):003:0> require 'complex' => false irb(main):004:0> 0.to_i => 0 irb(main):005:0> 0.to_f => 0.0 irb(main):006:0> 0.to_r => (0/1) irb(main):007:0> 0.to_c => (0+0i) irb(main):008:0> 0.to_d => 0.0 irb(main):009:0> 0.to_d.class => BigDecimal irb(main):010:0> ``` Do these methods work for you? They need no braces. ---------------------------------------- Feature #17170: Numeric.zero, Numeric.one https://bugs.ruby-lang.org/issues/17170#change-87572 * Author: foonlyboy (Eike Dierks) * Status: Feedback * Priority: Normal ---------------------------------------- Hi at the ruby team, I'd like to suggest to enhance Numeric to provide two new class methods, which shall be: zero and one - Integer.zero shall be equal to Integer(0) - Float.zero shall be equal to Float(0) - BigDecimal.zero shall be equal to BigDecimal(0) - Complex.zero shall be equal to Complex(0) Likewise for one, you get the idea. Numeric already provides #zero? so Numeric.zero.zero? shall always be true. I expect this to make code more explicit. And it would safe a pair of braces. (don't laugh -- this really got me here) --- Maybe you already considered that for 3.0, that would be a late addition. ruby shines in teaching mathematics. you know, we have zero and one there. I use ruby in the financial realm. For me it's important to write BigDecimal.zero --- I expect that the new api should not break existing code. We could try it with rails first, let's ask them. It would be nice to have that in rails 3. ~eike -- https://bugs.ruby-lang.org/ Unsubscribe: <mailto:[email protected]?subject=unsubscribe> <http://lists.ruby-lang.org/cgi-bin/mailman/options/ruby-core>