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* src/seq.c (main): Avoid seq_fast() with a start or end of -0.
* tests/misc/seq.pl: Add test cases.
* NEWS: Mention the fix.
Fixes http://bugs.gnu.org/17800
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Run "make update-copyright", but then also run this,
perl -pi -e 's/2\d\d\d-//' tests/sample-test
to make that one script use the single most recent year number.
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* src/seq.c (main): With 3 positive integer args we were
checking the end value was == "1", rather than the step value.
* tests/misc/seq.pl: Add tests for this case.
Reported by Marcel Böhme in http://bugs.gnu.org/13525
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* src/seq.c (get_default_format): Also account for the case where '.'
is auto added to the start value, which is significant when the
number sequence narrows.
* tests/misc/seq.pl: Add two new tests for the failing cases.
* NEWS: Mention the fix.
Fixes http://bugs.gnu.org/13394
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Run "make update-copyright", but then also run this,
perl -pi -e 's/2\d\d\d-//' tests/sample-test
to make that one script use the single most recent year number.
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This regression was introduced in commit v8.19-132-g3786fb6.
* src/seq.c (seq_fast): Don't use puts() to output the first number,
and instead insert it into the buffer as for other numbers.
Also output the terminator unconditionally.
* tests/misc/seq.pl: Add some basic tests for the -s option.
* NEWS: Mention the fix.
* THANKS.in: Reported by Philipp Gortan.
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* src/seq.c (scan_arg): Calculate the width more accurately
for numbers specified using scientific notation.
* tests/misc/seq.pl: Add tests for cases that were mishandled.
* NEWS: Mention the fix.
* THANKS.in: Reported by Marcel Böhme.
Fixes http://bugs.gnu.org/12959
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Handle non-negative whole numbers robustly and efficiently when
the increment is 1 and when no format-changing option is specified.
On the correctness front, for very large numbers, seq now works fine:
$ b=1000000000000000000000000000
$ src/seq ${b}09 ${b}11
100000000000000000000000000009
100000000000000000000000000010
100000000000000000000000000011
while the old one would infloop, printing garbage:
$ seq ${b}09 ${b}11 | head -2
99999999999999999997315645440
99999999999999999997315645440
The new code is much more efficient, too:
Old vs new: 55.81s vs 0.82s
$ env time --f=%e seq $((10**8)) > /dev/null
55.81
$ env time --f=%e src/seq $((10**8)) > /dev/null
0.82
* seq.c (incr): New function, inspired by the one in cat.c.
(cmp, seq_fast): New functions, inspired by code in nt-factor
by Torbjörn Granlund and Niels Möller.
(trim_leading_zeros): New function, without which cmp would malfunction.
(all_digits_p): New function.
(main): Hoist the format_str-vs-equal_width check to precede first
treatment of operands, and insert code to call seq_fast when possible.
* NEWS (Bug fixes): Mention the correctness fix.
(Improvements): Mention the speed-up.
* tests/misc/seq.pl: Exercise the new code.
Improved by: Bernhard Voelker.
http://thread.gmane.org/gmane.comp.gnu.coreutils.general/3340
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Not only this shrinks the size of the generated Makefile (from > 6300
lines to ~3000), but will allow further simplifications in future
changes.
* tests/Makefile.am (TEST_EXTENSIONS): Add '.sh' and '.pl'.
(PL_LOG_COMPILER, SH_LOG_COMPILER): New, still defined simply to
$(LOG_COMPILER) for the time being.
(TESTS, root_tests): Adjust as described.
* All tests: Rename as described.
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