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so that commands like "sort -k 18446744073709551616" no longer fail merely
because 18446744073709551616 doesn't fit in uintmax_t. The trick is that
these fields can all be treated as effectively infinity; their exact
values don't matter, since no internal buffer can be that long.
* src/join.c (string_to_join_field): Verify that SIZE_MAX <= ULONG_MAX
if the code assumes this. Silently truncate too-large values to SIZE_MAX,
as the remaining code will do the right thing in this case.
* src/sort.c (parse_field_count): Likewise.
* src/uniq.c (size_opt, main): Likewise.
* tests/join/Test.pm (bigfield): New test.
* tests/sort/Test.pm (bigfield): New test.
* tests/uniq/Test.pm (121): New test.
Signed-off-by: Jim Meyering <jim@meyering.net>
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whenever uniq is expected to fail. This should catch the other case
[test #112] in which uniq emits "cat: write error: Broken pipe" on
some systems.
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* tests/uniq/Test.pm: Don't perform the pipe-reading version of test
118, since it emits "cat: write error: Broken pipe" on some systems.
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if they use file names starting with +.
(test_vector): Don't set _POSIX2_VERSION if obs but not obs-plus.
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For tests matching /^obs/,
put _POSIX2_VERSION=199209 in the environment, so the tests succeed
even when the environment would have contained _POSIX2_VERSION=200112.
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