From: "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
To: Han-Wen Nienhuys <hanwen@google.com>
Cc: git@vger.kernel.org, "Junio C Hamano" <gitster@pobox.com>,
"Carlo Marcelo Arenas Belón" <carenas@gmail.com>
Subject: Re: [PATCH] reftable tests: use C syntax compatible with old xlc
Date: Thu, 13 Jan 2022 17:22:47 +0100 [thread overview]
Message-ID: <220113.86v8yntxfb.gmgdl@evledraar.gmail.com> (raw)
In-Reply-To: <CAFQ2z_M2ZH-8RNS_zxShkdaXdO4x4Vr8EwrFo6atd0qzyy36oA@mail.gmail.com>
On Thu, Jan 13 2022, Han-Wen Nienhuys wrote:
> On Thu, Jan 13, 2022 at 12:38 PM Ævar Arnfjörð Bjarmason
> <avarab@gmail.com> wrote:
>> Change code added in 1ae2b8cda84 (reftable: add merged table view,
>> 2021-10-07) to be compatible with older versions of AIX's IBM xlc
>> compiler. Version V12.1 of it (on gcc111.fsffrance.org) will hard
>> error with:
>>
>> "reftable/merged_test.c", line 211.19: 1506-196 (S) Initialization between types "char*" and "struct reftable_ref_record" is not allowed.
>> "reftable/merged_test.c", line 212.19: 1506-196 (S) Initialization between types "unsigned long long" and "struct reftable_ref_record" is not allowed.
>> "reftable/merged_test.c", line 213.19: 1506-196 (S) Initialization between types "enum {...}" and "struct reftable_ref_record" is not allowed.
>> "reftable/merged_test.c", line 214.19: 1506-196 (S) Initialization between types "unsigned char*" and "struct reftable_ref_record" is not allowed.
>> "reftable/merged_test.c", line 349.19: 1506-196 (S) Initialization between types "char*" and "struct reftable_log_record" is not allowed.
>> "reftable/merged_test.c", line 350.19: 1506-196 (S) Initialization between types "unsigned long long" and "struct reftable_log_record" is not allowed.
>> "reftable/merged_test.c", line 351.19: 1506-196 (S) Initialization between types "enum {...}" and "struct reftable_log_record" is not allowed.
>
> Weird. What C standard does xlc implement?
I don't know. Your guess (and searching through IBM's website) is as
good as mine.
AFAICT it mostly implements the C99 semantics, but doesn't grok the
interpolation of structs-within-structs
>> Perhaps there's a better way to do this, but just duplicating the
>> earlier struct values declared earlier in these functions works, and
>> is probably the least bad solution.
>
> I'd rather not duplicate anything. Can't you do
>
> struct foobar *want = { &r[0], &r[2] .. }
Maybe I'm just not understanding what you mean, but this:
struct reftable_ref_record *want = {
&r2[0],
&r1[1],
&r3[0],
&r3[1],
};
Gives us the predictable compiler error on gcc/clang, nevermind
xlc. Turn that into:
struct reftable_ref_record want[] = {
&r2[0],
&r1[1],
&r3[0],
&r3[1],
};
And you can get gcc/clang to emulate what that xlc version (mis)parses
that as. I.e. it takes it as a reference to the nth element in that
struct.
next prev parent reply other threads:[~2022-01-13 16:25 UTC|newest]
Thread overview: 111+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-30 14:57 [PATCH 00/19] Adds reftable library code from https://github.com/hanwen/reftable Han-Wen Nienhuys via GitGitGadget
2021-08-30 14:57 ` [PATCH 01/19] hash.h: provide constants for the hash IDs Han-Wen Nienhuys via GitGitGadget
2021-08-30 14:57 ` [PATCH 02/19] reftable: RFC: add LICENSE Han-Wen Nienhuys via GitGitGadget
2021-08-30 14:57 ` [PATCH 03/19] reftable: add error related functionality Han-Wen Nienhuys via GitGitGadget
2021-08-30 14:57 ` [PATCH 04/19] reftable: utility functions Han-Wen Nienhuys via GitGitGadget
2021-08-30 14:57 ` [PATCH 05/19] reftable: add blocksource, an abstraction for random access reads Han-Wen Nienhuys via GitGitGadget
2021-08-30 14:57 ` [PATCH 06/19] reftable: (de)serialization for the polymorphic record type Han-Wen Nienhuys via GitGitGadget
2021-08-30 14:57 ` [PATCH 07/19] Provide zlib's uncompress2 from compat/zlib-compat.c Han-Wen Nienhuys via GitGitGadget
2021-09-02 6:12 ` [PATCH] fixup! " Carlo Marcelo Arenas Belón
2021-08-30 14:57 ` [PATCH 08/19] reftable: reading/writing blocks Han-Wen Nienhuys via GitGitGadget
2021-08-30 14:57 ` [PATCH 09/19] reftable: a generic binary tree implementation Han-Wen Nienhuys via GitGitGadget
2021-08-30 14:57 ` [PATCH 10/19] reftable: write reftable files Han-Wen Nienhuys via GitGitGadget
2021-08-30 14:57 ` [PATCH 11/19] reftable: generic interface to tables Han-Wen Nienhuys via GitGitGadget
2021-08-30 14:57 ` [PATCH 12/19] reftable: read reftable files Han-Wen Nienhuys via GitGitGadget
2021-08-30 14:57 ` [PATCH 13/19] reftable: reftable file level tests Han-Wen Nienhuys via GitGitGadget
2021-08-30 14:57 ` [PATCH 14/19] reftable: add a heap-based priority queue for reftable records Han-Wen Nienhuys via GitGitGadget
2021-08-30 14:57 ` [PATCH 15/19] reftable: add merged table view Han-Wen Nienhuys via GitGitGadget
2021-08-30 14:57 ` [PATCH 16/19] reftable: implement refname validation Han-Wen Nienhuys via GitGitGadget
2021-08-30 14:57 ` [PATCH 17/19] reftable: implement stack, a mutable database of reftable files Han-Wen Nienhuys via GitGitGadget
2021-08-30 14:57 ` [PATCH 18/19] reftable: add dump utility Han-Wen Nienhuys via GitGitGadget
2021-08-30 14:57 ` [PATCH 19/19] Add "test-tool dump-reftable" command Han-Wen Nienhuys via GitGitGadget
2021-08-30 15:22 ` [PATCH 00/19] Adds reftable library code from https://github.com/hanwen/reftable Han-Wen Nienhuys
2021-09-08 7:45 ` [PATCH 0/4] fixup for hn/reftable Carlo Marcelo Arenas Belón
2021-09-08 7:45 ` [PATCH 1/4] fixup! reftable: reading/writing blocks Carlo Marcelo Arenas Belón
2021-09-08 7:45 ` [PATCH 2/4] fixup! reftable: utility functions Carlo Marcelo Arenas Belón
2021-09-08 7:45 ` [PATCH 3/4] fixup! Provide zlib's uncompress2 from compat/zlib-compat.c Carlo Marcelo Arenas Belón
2021-09-08 7:45 ` [PATCH 4/4] fixup! reftable: utility functions Carlo Marcelo Arenas Belón
2021-09-08 18:50 ` [PATCH 0/4] fixup for hn/reftable Junio C Hamano
2021-09-09 18:47 ` [PATCH v2 00/19] Adds reftable library code from https://github.com/hanwen/reftable Han-Wen Nienhuys via GitGitGadget
2021-09-09 18:47 ` [PATCH v2 01/19] hash.h: provide constants for the hash IDs Han-Wen Nienhuys via GitGitGadget
2021-09-09 18:47 ` [PATCH v2 02/19] reftable: RFC: add LICENSE Han-Wen Nienhuys via GitGitGadget
2021-09-09 18:47 ` [PATCH v2 03/19] reftable: add error related functionality Han-Wen Nienhuys via GitGitGadget
2021-09-09 18:47 ` [PATCH v2 04/19] reftable: utility functions Han-Wen Nienhuys via GitGitGadget
2021-09-09 18:47 ` [PATCH v2 05/19] reftable: add blocksource, an abstraction for random access reads Han-Wen Nienhuys via GitGitGadget
2021-09-09 18:47 ` [PATCH v2 06/19] reftable: (de)serialization for the polymorphic record type Han-Wen Nienhuys via GitGitGadget
2021-09-09 18:47 ` [PATCH v2 07/19] Provide zlib's uncompress2 from compat/zlib-compat.c Han-Wen Nienhuys via GitGitGadget
2021-09-15 7:34 ` Carlo Arenas
2021-09-09 18:47 ` [PATCH v2 08/19] reftable: reading/writing blocks Han-Wen Nienhuys via GitGitGadget
2021-09-24 11:52 ` Ævar Arnfjörð Bjarmason
2021-09-09 18:47 ` [PATCH v2 09/19] reftable: a generic binary tree implementation Han-Wen Nienhuys via GitGitGadget
2021-09-09 18:47 ` [PATCH v2 10/19] reftable: write reftable files Han-Wen Nienhuys via GitGitGadget
2021-09-09 18:47 ` [PATCH v2 11/19] reftable: generic interface to tables Han-Wen Nienhuys via GitGitGadget
2021-09-09 18:47 ` [PATCH v2 12/19] reftable: read reftable files Han-Wen Nienhuys via GitGitGadget
2021-09-09 18:47 ` [PATCH v2 13/19] reftable: reftable file level tests Han-Wen Nienhuys via GitGitGadget
2021-09-09 18:47 ` [PATCH v2 14/19] reftable: add a heap-based priority queue for reftable records Han-Wen Nienhuys via GitGitGadget
2021-09-09 18:47 ` [PATCH v2 15/19] reftable: add merged table view Han-Wen Nienhuys via GitGitGadget
2021-09-09 18:47 ` [PATCH v2 16/19] reftable: implement refname validation Han-Wen Nienhuys via GitGitGadget
2021-09-09 18:47 ` [PATCH v2 17/19] reftable: implement stack, a mutable database of reftable files Han-Wen Nienhuys via GitGitGadget
2021-09-09 18:47 ` [PATCH v2 18/19] reftable: add dump utility Han-Wen Nienhuys via GitGitGadget
2021-09-09 18:47 ` [PATCH v2 19/19] Add "test-tool dump-reftable" command Han-Wen Nienhuys via GitGitGadget
2021-09-09 20:02 ` [PATCH v2 00/19] Adds reftable library code from https://github.com/hanwen/reftable Junio C Hamano
2021-09-09 20:32 ` Junio C Hamano
2021-09-13 10:14 ` Han-Wen Nienhuys
2021-09-13 18:30 ` Junio C Hamano
2021-09-13 19:29 ` Carlo Arenas
2021-09-13 20:34 ` Junio C Hamano
2021-09-28 15:09 ` [PATCH v3 " Han-Wen Nienhuys via GitGitGadget
2021-09-28 15:09 ` [PATCH v3 01/19] hash.h: provide constants for the hash IDs Han-Wen Nienhuys via GitGitGadget
2021-09-28 15:09 ` [PATCH v3 02/19] reftable: RFC: add LICENSE Han-Wen Nienhuys via GitGitGadget
2021-09-28 15:10 ` [PATCH v3 03/19] reftable: add error related functionality Han-Wen Nienhuys via GitGitGadget
2021-09-28 15:10 ` [PATCH v3 04/19] reftable: utility functions Han-Wen Nienhuys via GitGitGadget
2021-09-28 15:10 ` [PATCH v3 05/19] reftable: add blocksource, an abstraction for random access reads Han-Wen Nienhuys via GitGitGadget
2021-09-28 15:10 ` [PATCH v3 06/19] reftable: (de)serialization for the polymorphic record type Han-Wen Nienhuys via GitGitGadget
2021-09-28 15:10 ` [PATCH v3 07/19] Provide zlib's uncompress2 from compat/zlib-compat.c Han-Wen Nienhuys via GitGitGadget
2021-09-28 15:10 ` [PATCH v3 08/19] reftable: reading/writing blocks Han-Wen Nienhuys via GitGitGadget
2021-09-30 12:23 ` [PATCH] squash! " Carlo Marcelo Arenas Belón
2021-10-07 16:34 ` Han-Wen Nienhuys
2021-09-28 15:10 ` [PATCH v3 09/19] reftable: a generic binary tree implementation Han-Wen Nienhuys via GitGitGadget
2021-09-28 15:10 ` [PATCH v3 10/19] reftable: write reftable files Han-Wen Nienhuys via GitGitGadget
2021-09-28 15:10 ` [PATCH v3 11/19] reftable: generic interface to tables Han-Wen Nienhuys via GitGitGadget
2021-09-28 15:10 ` [PATCH v3 12/19] reftable: read reftable files Han-Wen Nienhuys via GitGitGadget
2021-09-28 15:10 ` [PATCH v3 13/19] reftable: reftable file level tests Han-Wen Nienhuys via GitGitGadget
2021-09-28 15:10 ` [PATCH v3 14/19] reftable: add a heap-based priority queue for reftable records Han-Wen Nienhuys via GitGitGadget
2021-09-28 15:10 ` [PATCH v3 15/19] reftable: add merged table view Han-Wen Nienhuys via GitGitGadget
2021-09-28 15:10 ` [PATCH v3 16/19] reftable: implement refname validation Han-Wen Nienhuys via GitGitGadget
2021-09-28 15:10 ` [PATCH v3 17/19] reftable: implement stack, a mutable database of reftable files Han-Wen Nienhuys via GitGitGadget
2021-09-28 15:10 ` [PATCH v3 18/19] reftable: add dump utility Han-Wen Nienhuys via GitGitGadget
2021-09-28 15:10 ` [PATCH v3 19/19] Add "test-tool dump-reftable" command Han-Wen Nienhuys via GitGitGadget
2021-09-28 18:17 ` [PATCH v3 00/19] Adds reftable library code from https://github.com/hanwen/reftable Junio C Hamano
2021-10-02 9:20 ` Ævar Arnfjörð Bjarmason
2021-09-30 5:40 ` hn/reftable "fixes" Carlo Marcelo Arenas Belón
2021-09-30 5:40 ` [PATCH 1/4] fixup! reftable: add a heap-based priority queue for reftable records Carlo Marcelo Arenas Belón
2021-09-30 5:40 ` [PATCH 2/4] fixup! reftable: implement stack, a mutable database of reftable files Carlo Marcelo Arenas Belón
2021-10-01 15:37 ` C++(C99)-style comments in git.git Ævar Arnfjörð Bjarmason
2021-09-30 5:40 ` [PATCH 3/4] config.mak.uname: last release and snapshots of Minix still use zlib 1.2.3 Carlo Marcelo Arenas Belón
2021-09-30 5:40 ` [PATCH 4/4] reftable: avoid non portable compile time pointer to function Carlo Marcelo Arenas Belón
2021-09-30 20:35 ` hn/reftable "fixes" Junio C Hamano
2021-10-07 20:24 ` [PATCH v4 00/19] Adds reftable library code from https://github.com/hanwen/reftable Han-Wen Nienhuys via GitGitGadget
2021-10-07 20:24 ` [PATCH v4 01/19] hash.h: provide constants for the hash IDs Han-Wen Nienhuys via GitGitGadget
2021-10-07 20:24 ` [PATCH v4 02/19] reftable: add LICENSE Han-Wen Nienhuys via GitGitGadget
2021-10-07 20:24 ` [PATCH v4 03/19] reftable: add error related functionality Han-Wen Nienhuys via GitGitGadget
2021-10-07 20:25 ` [PATCH v4 04/19] reftable: utility functions Han-Wen Nienhuys via GitGitGadget
2021-10-07 20:25 ` [PATCH v4 05/19] reftable: add blocksource, an abstraction for random access reads Han-Wen Nienhuys via GitGitGadget
2021-10-07 20:25 ` [PATCH v4 06/19] reftable: (de)serialization for the polymorphic record type Han-Wen Nienhuys via GitGitGadget
2021-10-07 20:25 ` [PATCH v4 07/19] Provide zlib's uncompress2 from compat/zlib-compat.c Han-Wen Nienhuys via GitGitGadget
2021-10-07 20:25 ` [PATCH v4 08/19] reftable: reading/writing blocks Han-Wen Nienhuys via GitGitGadget
2021-10-07 20:25 ` [PATCH v4 09/19] reftable: a generic binary tree implementation Han-Wen Nienhuys via GitGitGadget
2021-10-07 20:25 ` [PATCH v4 10/19] reftable: write reftable files Han-Wen Nienhuys via GitGitGadget
2021-10-07 20:25 ` [PATCH v4 11/19] reftable: generic interface to tables Han-Wen Nienhuys via GitGitGadget
2021-10-07 20:25 ` [PATCH v4 12/19] reftable: read reftable files Han-Wen Nienhuys via GitGitGadget
2021-10-07 20:25 ` [PATCH v4 13/19] reftable: reftable file level tests Han-Wen Nienhuys via GitGitGadget
2021-10-07 20:25 ` [PATCH v4 14/19] reftable: add a heap-based priority queue for reftable records Han-Wen Nienhuys via GitGitGadget
2021-10-07 20:25 ` [PATCH v4 15/19] reftable: add merged table view Han-Wen Nienhuys via GitGitGadget
2022-01-13 11:38 ` [PATCH] reftable tests: use C syntax compatible with old xlc Ævar Arnfjörð Bjarmason
2022-01-13 14:23 ` Han-Wen Nienhuys
2022-01-13 16:22 ` Ævar Arnfjörð Bjarmason [this message]
2022-01-13 19:09 ` Junio C Hamano
2021-10-07 20:25 ` [PATCH v4 16/19] reftable: implement refname validation Han-Wen Nienhuys via GitGitGadget
2021-10-07 20:25 ` [PATCH v4 17/19] reftable: implement stack, a mutable database of reftable files Han-Wen Nienhuys via GitGitGadget
2021-10-07 20:25 ` [PATCH v4 18/19] reftable: add dump utility Han-Wen Nienhuys via GitGitGadget
2021-10-07 20:25 ` [PATCH v4 19/19] Add "test-tool dump-reftable" command Han-Wen Nienhuys via GitGitGadget
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