This reverts commit r60341,r60342,r60344,r60345.
Breaking compabitility of the order of result breaks many tests.
To avoid such effort to fix tests, the order should be kept.
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* io.c (rb_io_puts): write a newline together at once for each
argument. based on the patch by rohitpaulk (Rohit Kuruvilla) at
[ruby-core:83508]. [Feature #14042]
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[Feature #13884]
Reduce number of memory allocations for "and", "or" and "diff"
operations on small arrays
Very often, arrays are used to filter parameters and to select
interesting items from 2 collections and very often these
collections are small enough, for example:
```ruby
SAFE_COLUMNS = [:id, :title, :created_at]
def columns
@all_columns & SAFE_COLUMNS
end
```
In this patch, I got rid of unnecessary memory allocations for
small arrays when "and", "or" and "diff" operations are performed.
name | HEAD | PATCH
-----------------+------:+------:
array_small_and | 0.615 | 0.263
array_small_diff | 0.676 | 0.282
array_small_or | 0.953 | 0.463
name | PATCH
-----------------+------:
array_small_and | 2.343
array_small_diff | 2.392
array_small_or | 2.056
name | HEAD | PATCH
-----------------+------:+------:
array_small_and | 1.429 | 1.005
array_small_diff | 1.493 | 0.878
array_small_or | 1.672 | 1.152
name | PATCH
-----------------+------:
array_small_and | 1.422
array_small_diff | 1.700
array_small_or | 1.452
Author: Dmitry Bochkarev <dimabochkarev@gmail.com>
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* Other ruby implementations use the spec/ruby directory.
[Misc #13792] [ruby-core:82287]
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