Merge pull request JuliaLang#10768 from doomsplayer/patch-1

randperm throws bound error if n equals 0
Sacha0 · Apr 9, 2015 · 8a80c31 · 8a80c31
2 parents 3ffbe90 + 3e5ec97
commit 8a80c31
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/base/random.jl b/base/random.jl
@@ -1266,6 +1266,9 @@ shuffle(a::AbstractVector) = shuffle(GLOBAL_RNG, a)
 
 function randperm(r::AbstractRNG, n::Integer)
  a = Array(typeof(n), n)
+ if n == 0
+ return a
+ end
  a[1] = 1
  @inbounds for i = 2:n
  j = rand(r, 1:i)