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Revision 5006db1399ed521f00f56708181879627ad39d5b authored by Alexander Plavin on 30 September 2023, 15:17:14 UTC, committed by GitHub on 30 September 2023, 15:17:14 UTC 
improve performance of searchsorted(range, lt=<) (#50365)
 
No behavior change, just a performance improvement: searchsorted(range,
lt=<) now performs exactly as fast as searchsorted(range).

Passing lt=< allows searchsorted to find floating point values such as
-0.0, so it's useful to make it fast - see
https://github.com/JuliaLang/julia/issues/44102#issuecomment-1418152295.
1 parent d988f8f
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filesystem.jl 
# This file is a part of Julia. License is MIT: https://julialang.org/license

mktempdir() do dir

  # Create test file
  filename = joinpath(dir, "file.txt")
  text = "123456"
  write(filename, text)

  # test filesystem truncate (shorten)
  file = Base.Filesystem.open(filename, Base.Filesystem.JL_O_RDWR)
  Base.Filesystem.truncate(file, 2)
  text = text[1:2]
  @test length(read(file)) == 2
  close(file)

  # test filesystem truncate (lengthen)
  file = Base.Filesystem.open(filename, Base.Filesystem.JL_O_RDWR)
  Base.Filesystem.truncate(file, 20)
  @test length(read(file)) == 20
  close(file)

  # test filesystem futime
  file = Base.Filesystem.open(filename, Base.Filesystem.JL_O_RDWR)
  Base.Filesystem.futime(file, 1.0, 2.0)
  @test Base.Filesystem.stat(file).mtime == 2.0
  close(file)

  # test filesystem readbytes!
  file = Base.Filesystem.open(filename, Base.Filesystem.JL_O_RDWR)
  res = ones(UInt8, 80)
  Base.Filesystem.readbytes!(file, res)
  @test res == UInt8[text..., (i > 20 for i in (length(text) + 1):length(res))...]
  close(file)

end

import Base.Filesystem: S_IRUSR, S_IRGRP, S_IROTH
@testset "types of permission mask constants" begin
  @test S_IRUSR & ~S_IRGRP == S_IRUSR
  @test typeof(S_IRUSR) == typeof(S_IRGRP) == typeof(S_IROTH)
end
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