Invokes the block passing in successive elements from array,
returning an array containing those elements for which the block returns a
true value (equivalent to Enumerable#select).
a=%w{ a b c d e f }a.select{|v|v=~/[aeiou]/}#=> ["a", "e"]
/*
* call-seq:
* array.select {|item| block } -> an_array
*
* Invokes the block passing in successive elements from <i>array</i>,
* returning an array containing those elements for which the block
* returns a true value (equivalent to <code>Enumerable#select</code>).
*
* a = %w{ a b c d e f }
* a.select {|v| v =~ /[aeiou]/} #=> ["a", "e"]
*/
static VALUE
rb_ary_select(ary)
VALUE ary;
{
VALUE result;
long i;
result = rb_ary_new2(RARRAY(ary)->len);
for (i = 0; i < RARRAY(ary)->len; i++) {
if (RTEST(rb_yield(RARRAY(ary)->ptr[i]))) {
rb_ary_push(result, rb_ary_elt(ary, i));
}
}
return result;
}