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| author | matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2007-09-29 08:43:59 +0000 |
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| committer | matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2007-09-29 08:43:59 +0000 |
| commit | bf2a8104b4c3e5011ba05f549146ecc722c4efaf (patch) | |
| tree | 715aba650bcb5a560ff6a283a755214443321d76 /lib/rss/xmlparser.rb | |
| parent | ee2c93e8004437cc10ad642439adc11dfae5a0f4 (diff) | |
| download | ruby-bf2a8104b4c3e5011ba05f549146ecc722c4efaf.tar.gz ruby-bf2a8104b4c3e5011ba05f549146ecc722c4efaf.tar.xz ruby-bf2a8104b4c3e5011ba05f549146ecc722c4efaf.zip | |
* array.c (rb_ary_combination): new method to give all combination
of elements from an array. [ruby-list:42671]
* array.c (rb_ary_product): a new method to get all combinations
of elements from two arrays. can be extended to combinations of
n-arrays, e.g. a.product(b,c,d). anyone volunteer?
* array.c (rb_ary_permutation): empty function body to calculate
permutations of array elements. need volunteer.
git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@13568 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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