function dnannsumpw( N, x, strideX, offsetX, out, strideOut, offsetOut ) {
	addon.ndarray( N, x, strideX, offsetX, out, strideOut, offsetOut );
	return out;
}
Computes the sum of double-precision floating-point strided array elements, ignoring `NaN` values and using pairwise summation.

@param {PositiveInteger} N - number of indexed elements
@param {Float64Array} x - input array
@param {integer} strideX - stride length for `x`
@param {NonNegativeInteger} offsetX - starting index for `x`
@param {Float64Array} out - output array
@param {integer} strideOut - stride length for `out`
@param {NonNegativeInteger} offsetOut - starting index for `out`
@returns {Float64Array} output array

@example
var Float64Array = require( '@stdlib/array/float64' );

var x = new Float64Array( [ 2.0, 1.0, 2.0, -2.0, -2.0, 2.0, 3.0, 4.0, NaN, NaN ] );
var out = new Float64Array( 2 );

var v = dnannsumpw( 5, x, 2, 1, out, 1, 0 );
// returns <Float64Array>[ 5.0, 4 ]