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isreadable returns true for a file opened in "w" mode #5056

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timholy opened this issue Dec 7, 2013 · 0 comments
Closed

isreadable returns true for a file opened in "w" mode #5056

timholy opened this issue Dec 7, 2013 · 0 comments

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@timholy
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timholy commented Dec 7, 2013 

julia> s = open("/tmp/test.dat", "w")
IOStream(<file /tmp/test.dat>)

julia> isreadable(s)
true

#5053 shows an example where this behavior can lead to a segfault, suggesting that it isn't truly readable.
@timholy timholy closed this as completed in 3d27678 Dec 7, 2013
timholy added a commit that referenced this issue Dec 7, 2013
@timholy
Merge pull request #5058 from timholy/readable
249a2d4 
Fix #5056
gitfoxi pushed a commit to gitfoxi/julia that referenced this issue Dec 13, 2013
Merge remote-tracking branch 'upstream/master'
4e8db17 
* upstream/master: (53 commits)
  edit embedding chapter
  formatting fixes
  Fix JuliaLang#5056
  more consitent/useful description of predicate in ie all()
  NEWS for JuliaLang#4042
  Add sparse matvec to perf benchmark (JuliaLang#4707)
  Use warn_once instead of warn (JuliaLang#5038)
  Use warn() instead of println in base/sprase/sparsematrix.jl
  allow scale(b,A) or scale(A,b) when b is a scalar as well as a vector, don't restrict scale unnecessarily to arrays of numbers (e.g. scaling arrays of arrays should work), and improve documentation for scale\!
  Added section about memory management
  added negative bitarray rolling
  More accurate linspace for types with greater precision than Float64
  add realmin realmax for BigFloat
  fix eps(realmax), add typemin and typemax for BigFloat
  fix JuliaLang#5025, ordering used by nextfloat/prevfloat
  roll back on errors during type definitions. fixes JuliaLang#5009
  improve method signature errors. fixes JuliaLang#5018
  update juliadoc
  add more asserts for casts
  Fix segfaulting on strstr() failure
  ...
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