/* * call-seq: * dvector.delete(number) -> number or nil * dvector.delete(number) { block } -> number or nil * * Deletes items from _dvector_ that are equal to _number_. If * _number_ is not found, returns <code>nil</code>. If the optional * code block is given, returns the result of <i>block</i> if the item * is not found. * * a = Dvector.new(5) {|i| i*3 } * a.delete(6) -> 6 * a -> Dvector[0, 3, 9, 12] * a.delete(2) -> nil * a.delete(2) { "not found" } -> "not found" */ VALUE dvector_delete(VALUE ary, VALUE item) {