function smskmap2( N, x, strideX, offsetX, y, strideY, offsetY, mask, strideMask, offsetMask, z, strideZ, offsetZ, fcn ) { // eslint-disable-line max-len, max-params
	var ix;
	var iy;
	var iz;
	var im;
	var i;
	if ( N <= 0 ) {
		return z;
	}
	ix = offsetX;
	iy = offsetY;
	iz = offsetZ;
	im = offsetMask;
	for ( i = 0; i < N; i++ ) {
		if ( mask[ im ] === 0 ) {
			z[ iz ] = fcn( x[ ix ], y[ iy ] );
		}
		ix += strideX;
		iy += strideY;
		iz += strideZ;
		im += strideMask;
	}
	return z;
}
Applies a binary function to single-precision floating-point strided input arrays according to a strided mask array and assigns results to a single-precision floating-point strided output array.

@param {NonNegativeInteger} N - number of indexed elements
@param {Float32Array} x - input array
@param {integer} strideX - `x` stride length
@param {NonNegativeInteger} offsetX - starting `x` index
@param {Float32Array} y - input array
@param {integer} strideY - `y` stride length
@param {NonNegativeInteger} offsetY - starting `y` index
@param {Uint8Array} mask - mask array
@param {integer} strideMask - `mask` stride length
@param {NonNegativeInteger} offsetMask - starting `mask` index
@param {Float32Array} z - destination array
@param {integer} strideZ - `z` stride length
@param {NonNegativeInteger} offsetZ - starting `z` index
@param {Function} fcn - binary function to apply
@returns {Float32Array} `z`

@example
var Float32Array = require( '@stdlib/array/float32' );
var Uint8Array = require( '@stdlib/array/uint8' );
var addf = require( '@stdlib/number/float32/base/add' );

var x = new Float32Array( [ 1.0, 2.0, 3.0, 4.0, 5.0 ] );
var y = new Float32Array( [ 1.0, 2.0, 3.0, 4.0, 5.0 ] );
var m = new Uint8Array( [ 0, 0, 1, 0, 0 ] );
var z = new Float32Array( x.length );

smskmap2( x.length, x, 1, 0, y, 1, 0, m, 1, 0, z, 1, 0, addf );

console.log( z );
// => <Float32Array>[ 2.0, 4.0, 0.0, 8.0, 10.0 ]