function significandf( x ) {
	return addon( x );
}
Returns an integer corresponding to the significand of a single-precision floating-point number.

@private
@param {number} x - input value
@returns {integer32} - significand

@example
var toFloat32 = require( '@stdlib/number/float64/base/to-float32' );

var s = significandf( toFloat32( 3.14e34 ) ); // => 10000011000010001110111
// returns 4293751

s = significandf( toFloat32( 3.14e-34 ) ); // => 10100001011000001010101
// returns 5288021

s = significandf( toFloat32( -3.14 ) ); // => 10010001111010111000011
// returns 4781507