not raise an exception but return nil just like slice() does.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@14183 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
arbitrary number of arrays. a patch from David Flanagan
<david AT davidflanagan.com>. [ruby-core:12346]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@13598 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
David Flanagan. [ruby-core:12344]
* array.c (rb_ary_combination): RDoc update to clarify. a patch
from David Flanagan. [ruby-core:12344]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@13590 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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: svn+ssh://ci.ruby-lang.org/ruby/trunk@13568 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
array as argument.
* test/ruby/test_*.rb: moved invariants to left side in
assert_equal, and use assert_nil, assert_raises and so on.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@4516 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* test/ruby/test_*.rb: split sample/test.rb into 28 test/unit testcases. some
tests could not be translates... search '!!' mark to see it.
* test/csv/test_csv.rb: should require 'csv', not '../lib/csv'. test runner
should set load path correctly.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@4498 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
