The test for mod_fmpz fails

[albinahlback]

Output:

mod_fmpz....FAIL: Reducing without denominator
f = 1/3*x^3+1/3*x-1/3
a = 0
b = 0
c = 0
n = 39613779025677300323867164673

Fails both on FLINT branches trunk and flint-2.8, with Antic being current state of trunk.

[albinahlback]

Can you verify that you get the same result, @thofma?

[thofma]

I don't have the setup to build flint/antic locally at the moment. Could you check @tthsqe12?

[tthsqe12]

I get the exact same failure.

[albinahlback]

I've tried to go back in the commits to the beginning of last year, but the test still fails.

[albinahlback]

Seems to be this line
https://github.com/wbhart/antic/blob/e6f8bf1b640f7d1d5370eff542e23aa0ba80dd99/nf_elem/mod_fmpz.c#L86
that causes the problem: The only time it is ran is when the test fails.

[wbhart]

What is wrong with the line? Elsewhere you seemed to indicate it could not be causing the issue.

[albinahlback]

Executing that line resulted in an error, but that was resolved with the PR. As I noticed, it was no problem with the function in itself, but rather one of its dependencies. Sorry for the confusion.

[wbhart]

Thanks for clarifying.