Cannot compile version 6.0.1 for Python 3.14 32bits on Windows

[fjumelle]

Things to check first

• I have searched the existing issues and didn't find my bug already reported there

• I have checked that my bug is still present in the latest release

cbor2 version

6.0.1

Python version

Python 3.14 32 bits Windows

What happened?

When compiling the version 6.0.1 for Python 3.14 32 bits on Windows, I get this error:
error: literal out of range for usize
--> decoder.rs:1616:36
|
1616 | ... 65536..4294967296 => length >= 6,
| ^^^^^^^^^^ this value does not fit into the type usize whose range is 0..=4294967295

error: literal out of range for usize
--> encoder.rs:326:28
|
326 | 65536..4294967296 => length >= 7,
| ^^^^^^^^^^ this value does not fit into the type usize whose range is 0..=4294967295

while it is working fine when compiling it for Python 3.14 34 bits.

Replacing 4294967296 by 4294967295 in both files decoder.rs and encoder.rs resolves the compilation issue but as I do not know rust at all, I do not know whether this solution is acceptable.

How can we reproduce the bug?

python -m pip install cbor2-6.0.1.tar.gz

[agronholm]

Technically 65536..4294967296 is correct, as the range is exclusive at the end. Could you check if 65536..=4294967295 works? That would be correct while avoiding a literal that requires more than 64 bits.

[agronholm]

Side note, I didn't think anybody still used 32-bit Python builds.

[fjumelle]

Technically 65536..4294967296 is correct, as the range is exclusive at the end. Could you check if 65536..=4294967295 works? That would be correct while avoiding a literal that requires more than 64 bits.

Yes, 65536..=4294967295 seems working fine in 32bits environment. Compilation is okay and usage also okay.