How to find One's complement of floating point variable ?

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kintali narendra 2021-2-5

评论： Walter Roberson 2021-2-8

Hi,

I used Simulink Bitwise Not operator to find the one's complement of uint8 type variable.

Now I want to find one's complement of float variable (double) using simulink.

Can you please help me on how to perform the task.

Thank you

James Tursa 2021-2-5

What does a 1's complement of a floating point bit pattern even mean to you? How do you intend to use this result?

kintali narendra 2021-2-5

编辑：kintali narendra 2021-2-5

I need to convert float variable to binary number and then find one's complement of that, covert it into float variable again.

I am using it for redundancy validation.

Walter Roberson 2021-2-5

typecast to uint64, take the one's complement, typecast back.

Caution: 1's complement of 0.0 is NaN.

kintali narendra 2021-2-8

yes, I want decimal representation of the one's complement.

The function which Walter recommened worked.

Walter Roberson 2021-2-8

@Paul note in particular they wanted the one's complement of the binary representation of double precision numbers, not of an integer data type.

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