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* array.c (rb_ary_choice): Resurrect #choice. Let me think about

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it for a while.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@18514 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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knu 2008-08-12 05:56:10 +00:00
parent e65c07e98b
commit 9ba8db842e
2 changed files with 27 additions and 0 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Tue Aug 12 14:53:33 2008 Akinori MUSHA <knu@iDaemons.org>
* array.c (rb_ary_choice): Resurrect #choice. Let me think about
it for a while.
Tue Aug 12 13:57:11 2008 Akinori MUSHA <knu@iDaemons.org>
* misc/ruby-mode.el (ruby-imenu-create-index-in-block): Fix the

22
array.c
View file

@ -3349,6 +3349,27 @@ rb_ary_sample(argc, argv, ary)
}
/*
* call-seq:
* array.choice -> obj
*
* Choose a random element from an array. NOTE: This method will be
* deprecated in future. Use #sample instead.
*/
static VALUE
rb_ary_choice(ary)
VALUE ary;
{
long i, j;
i = RARRAY(ary)->len;
if (i == 0) return Qnil;
j = rb_genrand_real()*i;
return RARRAY(ary)->ptr[j];
}
/*
* call-seq:
* ary.cycle {|obj| block }
@ -3882,6 +3903,7 @@ Init_Array()
rb_define_method(rb_cArray, "shuffle!", rb_ary_shuffle_bang, 0);
rb_define_method(rb_cArray, "shuffle", rb_ary_shuffle, 0);
rb_define_method(rb_cArray, "sample", rb_ary_sample, -1);
rb_define_method(rb_cArray, "choice", rb_ary_choice, 0);
rb_define_method(rb_cArray, "cycle", rb_ary_cycle, -1);
rb_define_method(rb_cArray, "permutation", rb_ary_permutation, -1);
rb_define_method(rb_cArray, "combination", rb_ary_combination, 1);