Fix read!(s::IO, a::Vector{UInt8}) to return a

lost in JuliaLang#12839
skumagai · Oct 9, 2015 · 1c91dde · 1c91dde
1 parent e7bcf1d
commit 1c91dde
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diff --git a/base/io.jl b/base/io.jl
@@ -129,6 +129,7 @@ function read!(s::IO, a::Vector{UInt8})
     for i in 1:length(a)
         a[i] = read(s, UInt8)
     end
+    return a
 end
 
 function read!{T}(s::IO, a::Array{T})

diff --git a/test/core.jl b/test/core.jl
@@ -3431,3 +3431,8 @@ end
 end
 @test f13432b(true) == true
 @test f13432b(false) == false
+
+#13433, read!(::IO, a::Vector{UInt8}) should return a
+type IO13433 <: IO end
+Base.read(::IO13433, ::Type{UInt8}) = 0x01
+@test read!(IO13433(), Array(UInt8, 4)) == [0x01, 0x01, 0x01, 0x01]