function itercusumabs2( iterator ) {
	var iter;
	var FLG;
	var acc;
	if ( !isIteratorLike( iterator ) ) {
		throw new TypeError( format( 'invalid argument. Must provide an iterator. Value: `%s`.', iterator ) );
	}
	acc = incrsumabs2();

	// Create an iterator protocol-compliant object:
	iter = {};
	setReadOnly( iter, 'next', next );
	setReadOnly( iter, 'return', end );

	// If an environment supports `Symbol.iterator`, make the iterator iterable:
	if ( iteratorSymbol && isFunction( iterator[ iteratorSymbol ] ) ) {
		setReadOnly( iter, iteratorSymbol, factory );
	}
	return iter;

	/**
	* Returns an iterator protocol-compliant object containing the next iterated value.
	*
	* @private
	* @returns {Object} iterator protocol-compliant object
	*/
	function next() {
		var v;
		if ( FLG ) {
			return {
				'done': true
			};
		}
		v = iterator.next();
		if ( v.done ) {
			FLG = true;
			return v;
		}
		if ( typeof v.value === 'number' ) {
			v = acc( v.value );
		} else {
			v = acc( NaN );
		}
		return {
			'value': v,
			'done': false
		};
	}

	/**
	* Finishes an iterator.
	*
	* @private
	* @param {*} [value] - value to return
	* @returns {Object} iterator protocol-compliant object
	*/
	function end( value ) {
		FLG = true;
		if ( arguments.length ) {
			return {
				'value': value,
				'done': true
			};
		}
		return {
			'done': true
		};
	}

	/**
	* Returns a new iterator.
	*
	* @private
	* @returns {Iterator} iterator
	*/
	function factory() {
		return itercusumabs2( iterator[ iteratorSymbol ]() );
	}
}
Returns an iterator which iteratively computes a cumulative sum of squared absolute values.

@param {Iterator} iterator - input iterator
@throws {TypeError} must provide an iterator
@returns {Iterator} iterator

@example
var runif = require( '@stdlib/random/iter/uniform' );

var rand = runif( -10.0, 10.0, {
    'iter': 100
});

var it = itercusumabs2( rand );

var v = it.next().value;
// returns <number>

v = it.next().value;
// returns <number>

v = it.next().value;
// returns <number>

// ...