[#103241] [Ruby master Bug#17777] 2.6.7 fails to build on macOS: implicit declaration of function 'rb_native_mutex_destroy' is invalid in C99 — eregontp@...
Issue #17777 has been reported by Eregon (Benoit Daloze).
17 messages
2021/04/05
[#103305] [Ruby master Feature#17785] Allow named parameters to be keywords — marcandre-ruby-core@...
Issue #17785 has been reported by marcandre (Marc-Andre Lafortune).
21 messages
2021/04/08
[#103342] [Ruby master Feature#17790] Have a way to clear a String without resetting its capacity — jean.boussier@...
Issue #17790 has been reported by byroot (Jean Boussier).
14 messages
2021/04/09
[#103388] [ANN] Multi-factor Authentication of bugs.ruby-lang.org — SHIBATA Hiroshi <hsbt@...>
Hello,
5 messages
2021/04/12
[#103414] Re: [ANN] Multi-factor Authentication of bugs.ruby-lang.org
— Martin J. Dürst <duerst@...>
2021/04/13
Is there a way to use this multi-factor authentication for (like me)
[#103547] List of CI sites to check — Martin J. Dürst <duerst@...>
Hello everybody,
4 messages
2021/04/22
[#103596] [Ruby master Feature#17830] Add Integer#previous and Integer#prev — rafasoaresms@...
Issue #17830 has been reported by rafasoares (Rafael Soares).
9 messages
2021/04/26
[ruby-core:103353] [Ruby master Feature#17790] Have a way to clear a String without resetting its capacity
From:
dylan.smith@...
Date:
2021-04-09 18:44:39 UTC
List:
ruby-core #103353
Issue #17790 has been updated by dylants (Dylan Thacker-Smith).
If we want `clear` to shrink memory by default, a `shrink: true` keyword argument could be added so the user could override this default with `clear(shrink: false)`. This would make the change less risky, since it wouldn't change the behaviour of existing code.
----------------------------------------
Feature #17790: Have a way to clear a String without resetting its capacity
https://bugs.ruby-lang.org/issues/17790#change-91444
* Author: byroot (Jean Boussier)
* Status: Open
* Priority: Normal
----------------------------------------
In some tight loop it can be useful to re-use a buffer string. For instance:
```ruby
buffer = String.new(encoding: Encoding::BINARY, capacity: 1024)
10.times do
build_next_packet(buffer)
udp_socket.send(buffer)
buffer.clear
end
```
Currently `Array#clear` preserve the Array capacity, but `String#clear` doesn't:
```ruby
>> puts ObjectSpace.dump(Array.new(20).clear)
{"address":"0x7fd3260a1558", "type":"ARRAY", "class":"0x7fd3230972e0", "length":0, "memsize":200, "flags":{"wb_protected":true}}
>> puts ObjectSpace.dump(String.new(encoding: Encoding::BINARY, capacity: 1024).clear)
{"address":"0x7fd322a8a320", "type":"STRING", "class":"0x7fd3230b75b8", "embedded":true, "bytesize":0, "value":"", "memsize":40, "flags":{"wb_protected":true}}
```
It would be useful if `String#clear` wouldn't free allocated memory, but if it's a backward compatibility concern to change it, then maybe another method could make sense?
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