function isSameValuef( a, b ) {
	return Boolean( addon( a, b ) );
}
Tests if two single-precision floating-point numbers are the same value.

@private
@param {number} a - first input value
@param {number} b - second input value
@returns {boolean} boolean indicating whether two single-precision floating-point numbers are the same value

@example
var bool = isSameValuef( 3.14, 3.14 );
// returns true

@example
var bool = isSameValuef( -0.0, -0.0 );
// returns true

@example
var bool = isSameValuef( -0.0, 0.0 );
// returns false

@example
var bool = isSameValuef( NaN, NaN );
// returns true