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Date: Mon, 12 Sep 2022 17:47:40 -0400
From: Rich Felker <>
To: Ken Mays <>
Subject: Re: POSIX compliance testing of strftime

On Mon, Sep 12, 2022 at 01:32:28PM -0700, Ken Mays wrote:
> Hello,
> I am doing POSIX compliance testing of strftime on HAIKU (w/MUSL)
> using the Open POSIX Test Suite v1.5.2 located here:
> Open POSIX Test Suite - Browse Files at
> <>
> Specifically:
> open_posix_testsuite/1-1.c at master · haiku/open_posix_testsuite
> ( <>
> and
> open_posix_testsuite/2-1.c at master · haiku/open_posix_testsuite
> ( <>
> Issue: MUSL's strftime only fails one minor test for both test 1-1 and 2-1.
> I'd like to know if a MUSL developer could review the mentioned tests?
> Are there known issues with strftime with POSIX compliance testing?
> Thanks,
> ~K

When reporting test failures, could you report *which test* (not just
which files, but which particular assertion they're trying to make) is
failing? It would have saved a lot of time not having to get, compile,
and run them. But now after doing that, I can't even reproduce any
failures; I just get all PASS. So in order to investigate at all I
really need to know what specific failures you hit.

FWIW these are rather dubious tests since they depend on the current
time when the test is run and the user's locale. Perhaps the failures
you saw were dependent on those factors?


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