Backwards Compatibility break, program_options error with multiple occurrences

[Scott MacVicar <macvicar@…>]

We recently upgraded a project to 1.42 and noticed that command line parsing has regressed since 1.41.

We defined --config and --config-value, with 1.42 we get an error regarding multiple occurrences. In 1.41 this worked without issue.

[macvicar@dev457 /tmp] LD_LIBRARY_PATH=/tmp/b142/lib ./a.out --config foo --config-value bar
terminate called after throwing an instance of 'boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::program_options::multiple_occurrences> >'
  what():  multiple occurrences
Aborted
[macvicar@dev457 /tmp] LD_LIBRARY_PATH=/tmp/b141/lib ./a.out --config foo --config-value bar
config: foo
config-value: bar

[Scott MacVicar <macvicar@…>]

Test demonstrating program_options regression

[Vladimir Prus]

(In [59744]) Robustify disambiguation of full/approximate matches.

Fixes #3942.

[anonymous]

the bugfix is not included in Boost 1.44 see author's comment here ​http://stackoverflow.com/questions/2589668/boostprogram-options-bug-or-feature

[Vladimir Prus]

Scott, I am confused about your changes to the ticket. For starters, 1.44.0 is already released, so setting milestone to 1.44 is surely wrong (and generally, milestones are for library authors to set). But further, my comment on that site refers to 1.43. The change in question is on the release branch, since 2010-05-14. Therefore, I am not sure what you expect me to do?

[macvicar@…]

I didn't change this, was someone else.

• Scott

[Vladimir Prus]

Oh, sorry. Then I'll just make it fixed again.