Replacement for undocumented function feature('setround')

Is there a documented MATLAB replacement for the undocumented function feature(‘setround’)? It is fine if the answer is no. I'm just trying to confirm that is the case.

I have been using that function successfully to control how single handles tie-breakers when converting a value to single-precision. Using the C function fesetround is not an option I can use. At first glance using round(___,TieBreaker=”tozero”) seemed promising. However, that rounds before passing a value to single rather than controlling the behavior of the rounding decision within single itself.

Ex.

feature('setround', 0); %configure single to round tie-breakers towards 0
a_single = single(a);
feature('setround', 0.5); %return to default rounding configuration

Answer 1

[Adam Danz]

> Is there a documented MATLAB replacement for the undocumented function feature(‘setround’)?

There currently is not a documented means of controlling the rounding method for single data type value. However, Fixed-Point Designer has a quantizer object that lets you specify the rounding mode. See RoundingModes page for more info

[Myron]

Thank you for the confirmation/information.