Re: pgsql: Avoid -Wconversion warnings when using checksum_impl.h

From: Michael Paquier <michael(at)paquier(dot)xyz>
To: David Steele <david(at)pgmasters(dot)net>
Cc: Magnus Hagander <magnus(at)hagander(dot)net>, pgsql-committers <pgsql-committers(at)lists(dot)postgresql(dot)org>
Subject: Re: pgsql: Avoid -Wconversion warnings when using checksum_impl.h
Date: 2020-03-06 00:37:59
Message-ID: 20200306003759.GA52814@paquier.xyz
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On Thu, Mar 05, 2020 at 07:32:59PM -0500, David Steele wrote:
> FWIW, we use static values in our unit tests (which are written in C), then
> test against packaged versions of Postgres for integration tests.
>
> When I saw the commit I pulled it in so I could remove instructions for the
> manual step to add the cast. So in this case the issue was apparent really
> quickly. Normally we only pull in new code from PostgreSQL once a year.
>
> We think our unit tests against static values may have endianess issues but
> we have not verified that one way or the other. Here's what they look like:
>
> https://github.com/pgbackrest/pgbackrest/blob/e55443c890181ea63a350275447885331c8254e4/test/src/module/postgres/interfaceTest.c#L182

By doing so, the tests still fail if the page size is something else
than 8k, no?
--
Michael

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