method

none?

v1_8_7_72 - Show latest stable - 0 notes - Class: Enumerable

none?() public

Passes each element of the collection to the given block. The method returns true if the block never returns true for all elements. If the block is not given, none? will return true only if none of the collection members is true.

   %w{ant bear cat}.none? {|word| word.length == 5}  #=> true
   %w{ant bear cat}.none? {|word| word.length >= 4}  #=> false
   [].none?                                          #=> true
   [nil].none?                                       #=> true
   [nil,false].none?                                 #=> true

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/*
 *  call-seq:
 *     enum.none? [{|obj| block }]   => true or false
 *
 *  Passes each element of the collection to the given block. The method
 *  returns <code>true</code> if the block never returns <code>true</code>
 *  for all elements. If the block is not given, <code>none?</code> will return
 *  <code>true</code> only if none of the collection members is true.
 *
 *     %w{ant bear cat}.none? {|word| word.length == 5}  #=> true
 *     %w{ant bear cat}.none? {|word| word.length >= 4}  #=> false
 *     [].none?                                          #=> true
 *     [nil].none?                                       #=> true
 *     [nil,false].none?                                 #=> true
 */
static VALUE
enum_none(obj)
    VALUE obj;
{
    VALUE result = Qtrue;

    rb_block_call(obj, id_each, 0, 0, rb_block_given_p() ? none_iter_i : none_i, (VALUE)&result);
    return result;
}

none?

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