function minmaxf( x, y ) {
	return assign( x, y, [ 0.0, 0.0 ], 1, 0 );
}
Returns the minimum and maximum of two single-precision floating-point numbers.

@param {number} x - first number
@param {number} y - second number
@returns {Array<number>} minimum and maximum values

@example
var v = minmaxf( 3.14, 4.2 );
// returns [ 3.14, 4.2 ]

@example
var v = minmaxf( 3.14, NaN );
// returns [ NaN, NaN ]

@example
var v = minmaxf( +0.0, -0.0 );
// returns [ -0.0, 0.0 ]