How we are getting overflow when single(-2) is stored in uint32?

single (-2) to uint32

[Star Strider]

What are you doing?

This is what I get —

v = single(-2)

v = single -2

vu32 = uint32(v)

vu32 = uint32 0

vi32 = int32(v)

vi32 = int32 -2

.

[Nithinraj]

I was getting an integer overflow error in uint32 block,input to this block is a single data type.I was confused on how the overflow is happening there.

[Dyuman Joshi]

The "u" in the uint32 stands for unsigned, which means that this data-type supports only positive integers, along with 0.

If you want to convert a negative floating point integer to an integer data type, use signed integer classes, As @Star Strider has showed above (int8, int16, int32, int64)

[Star Strider]

@Nithinraj — You need to mention that you are using Simulilnk.

[Nithinraj]

I was getting the above error in uint32 block in simulink.

Answer 1

[Kshittiz]

Hi,

I understand that you are getting overflow when single(-2) is stored in uint32 block in Simulink.

In Simulink, an overflow error occurs when the value being assigned or stored in a block exceeds the maximum representable value for the specified data type. In your case, you're trying to store the value -2 in a uint32 block, which represents an unsigned 32-bit integer.

The uint32 data type can only store non-negative integers ranging from 0 to 4294967295. Since -2 is a negative value, it cannot be represented by the uint32 data type, resulting in an overflow error.

Thanks!