Method: Enumerable#reverse_each

Defined in:
enum.c

#reverse_each(*args) {|item| ... } ⇒ Enumerator #reverse_each(*args) ⇒ Object

Builds a temporary array and traverses that array in reverse order.

If no block is given, an enumerator is returned instead.

(1..3).reverse_each { |v| p v }

produces:

3
2
1

Overloads:



2418
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# File 'enum.c', line 2418

static VALUE
enum_reverse_each(int argc, VALUE *argv, VALUE obj)
{
    VALUE ary;
    long len;

    RETURN_SIZED_ENUMERATOR(obj, argc, argv, enum_size);

    ary = enum_to_a(argc, argv, obj);

    len = RARRAY_LEN(ary);
    while (len--) {
        long nlen;
        rb_yield(RARRAY_AREF(ary, len));
        nlen = RARRAY_LEN(ary);
        if (nlen < len) {
            len = nlen;
        }
    }

    return obj;
}