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use correct size when creating output data from an IOBuffer #54129

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Merged
merged 1 commit into from
Apr 20, 2024
Merged

use correct size when creating output data from an IOBuffer #54129

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2 changes: 1 addition & 1 deletion base/iobuffer.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -468,7 +468,7 @@ function take!(io::IOBuffer)
elseif io.writable
data = view(io.data, io.offset+1:nbytes+io.offset)
else
data = copyto!(StringVector(io.size), 1, io.data, io.offset + 1, nbytes)
data = copyto!(StringVector(nbytes), 1, io.data, io.offset + 1, nbytes)
end
else
nbytes = bytesavailable(io)
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5 changes: 5 additions & 0 deletions test/iobuffer.jl
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Expand Up @@ -383,3 +383,8 @@ end
seek(io,0)
@test Base.read_sub(io,v,1,1) == [1,0]
end

@testset "with offset" begin
b = pushfirst!([0x02], 0x01)
@test take!(IOBuffer(b)) == [0x01, 0x02]
end