method

empty?

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

1_8_6_287 (0)
1_8_7_72 (-38)
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empty?() public

Returns true if hsh contains no key-value pairs.

   {}.empty?   #=> true

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/*
 *  call-seq:
 *     hsh.empty?    => true or false
 *
 *  Returns <code>true</code> if <i>hsh</i> contains no key-value pairs.
 *
 *     {}.empty?   #=> true
 *
 */

static VALUE
rb_hash_empty_p(hash)
    VALUE hash;
{
    if (RHASH(hash)->tbl->num_entries == 0)
        return Qtrue;
    return Qfalse;
}

empty?

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