method

member?

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member?(p1) public

Returns true if any member of enum equals obj. Equality is tested using ==.

IO.constants.include? "SEEK_SET"          #=> true
IO.constants.include? "SEEK_NO_FURTHER"   #=> false

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/*
 *  call-seq:
 *     enum.include?(obj)     => true or false
 *     enum.member?(obj)      => true or false
 *
 *  Returns <code>true</code> if any member of <i>enum</i> equals
 *  <i>obj</i>. Equality is tested using <code>==</code>.
 *
 *     IO.constants.include? "SEEK_SET"          #=> true
 *     IO.constants.include? "SEEK_NO_FURTHER"   #=> false
 *
 */

static VALUE
enum_member(obj, val)
    VALUE obj, val;
{
    VALUE memo[2];

    memo[0] = val;
    memo[1] = Qfalse;
    rb_iterate(rb_each, obj, member_i, (VALUE)memo);
    return memo[1];
}

March 11, 2012

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Video Explanation of member?

http://www.youtube.com/watch?v=dDmsIDh-I2E

member?

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Video Explanation of member?