Library does not work with 32-bit integers

[paragonie-scott]

A more general issue than #37

F.F.FF..EFFEEFFFE..E....FFF.FFFF.........EFEFFFF.FF.SFF.....FS.  63 / 121 ( 52%)
.S.F.FFF.SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS      121 / 121 (100%)

Time: 27.48 seconds, Memory: 27.00MB

[snip]

ERRORS!
Tests: 121, Assertions: 674, Errors: 7, Failures: 30, Skipped: 52.

Here's the full output for the curious.
output.txt

[paragonie-scott]

This is going to require a significant rewrite of a lot of the code, and may not be worth it.

Most systems support 64-bit integers (i.e. PHP_INT_SIZE === 8). Windows on PHP 5 is the notable exception here.

For the moment, I'm going to document this behavior and make it fail hard if PHP_INT_SIZE === 4. Adding 32-bit implementations for Windows users can come in a future release.

[paresy]

At least PHP 5.6 on Linux armhf (like Raspberry Pi) is also effected. (PHP_INT_SIZE is 4)

[paragonie-scott]

Thanks for the update. I'll try to prioritize getting 32-bit working, but I've got a lot on my plate.

[paresy]

No hurry. I think i found the bug for my PHP 7.x problem and will be able to use native support in 7.2.