error/crash with subset on empty tables where zeros are at the end of the non-empty subset #1937

arunsrinivasan · 2016-11-29T11:52:25Z

I've managed to reproduce this on Windows. Here's a MRE.

require(data.table) # v1.9.8, R version 3.3.1, Windows 7
.Call("CsubsetVector", character(0), 1:0)
# Error: attempt to set index 1/1 in SET_STRING_ELT

Running it again hangs up the R session. The actual usage was subsetting of an empty table, but I tracked it down to subsetVector. Note that both .Call("CsubsetVector", character(0), 1L) and .Call("CsubsetVector", character(0), 0L), from a fresh session, work fine.

arunsrinivasan added the bug label Nov 29, 2016

arunsrinivasan closed this Nov 29, 2016

arunsrinivasan reopened this Nov 29, 2016

mattdowle added this to the v1.9.10 milestone Nov 29, 2016

mattdowle changed the title ~~error/crash with subset on empty tables~~ error/crash with subset on empty tables where zeros are at the end of the subset Nov 29, 2016

mattdowle changed the title ~~error/crash with subset on empty tables where zeros are at the end of the subset~~ error/crash with subset on empty tables where zeros are at the end of the non-empty subset Nov 29, 2016

mattdowle closed this in c0f6367 Nov 29, 2016

Rdatatable / data.table

error/crash with subset on empty tables where zeros are at the end of the non-empty subset #1937

error/crash with subset on empty tables where zeros are at the end of the non-empty subset #1937

arunsrinivasan commented Nov 29, 2016 •

edited

Rdatatable / data.table

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error/crash with subset on empty tables where zeros are at the end of the non-empty subset #1937

error/crash with subset on empty tables where zeros are at the end of the non-empty subset #1937

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arunsrinivasan commented Nov 29, 2016 • edited

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arunsrinivasan commented Nov 29, 2016 •

edited