method

drop

Ruby latest stable (v1_8_7_72) - 0 notes - Class: Enumerable

v1_8_6_287
1_8_7_72 (0)
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drop(p1) public

Drops first n elements from enum, and returns rest elements in an array.

   a = [1, 2, 3, 4, 5, 0]
   a.drop(3)             # => [4, 5, 0]

Show source

/*
 *  call-seq:
 *     enum.drop(n)               => array
 *
 *  Drops first n elements from <i>enum</i>, and returns rest elements
 *  in an array.
 *
 *     a = [1, 2, 3, 4, 5, 0]
 *     a.drop(3)             # => [4, 5, 0]
 *
 */

static VALUE
enum_drop(obj, n)
    VALUE obj;
    VALUE n;
{
    VALUE args[2];
    long len = NUM2LONG(n);

    if (len < 0) {
        rb_raise(rb_eArgError, "attempt to drop negative size");
    }

    args[1] = len;
    args[0] = rb_ary_new();
    rb_block_call(obj, id_each, 0, 0, drop_i, (VALUE)args);
    return args[0];
}

drop

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