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From: "Pavel Klinkovský" <pavel.klinkovsky@gmail.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: [9fans] Strange 'uintptr' behavior
Date: Mon, 24 Jan 2022 17:50:28 +0100	[thread overview]
Message-ID: <CAGNd-2PeH=+_49O8eQSoCbOvExW8Nr8J9efcJVe9XMv8onHEcQ@mail.gmail.com> (raw)

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Hi all,

I tried some artificial example for Plan9 compiler (5c)...

This code is compiled without any problem:
uintptr frst[] = {nil, nil, nil, nil, nil};
uintptr scnd[] = {nil, nil, frst, &frst[0]};

But this one fails:
uintptr frst[] = {nil, nil, nil, nil, nil};
uintptr scnd[] = {nil, nil, frst, &frst[1]};

...with message:
cpu% 5c -p t.c
/usr/pavel/t.c:16[t.c:888] initializer is not a constant: scnd

OTOH, replacement of 'uintptr' by 'void*' is compiled without any problem:
void* frst[] = {nil, nil, nil, nil, nil};
void* scnd[] = {nil, nil, frst, &frst[1]};

Any explanation is appreciated.


9fans: 9fans
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             reply	other threads:[~2022-01-24 16:50 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-24 16:50 Pavel Klinkovský [this message]
2022-01-24 19:33 ` Alexandr Babic
2022-01-24 19:49   ` Pavel Klinkovský
2022-01-24 19:54     ` Alexandr Babic
2022-01-24 22:26 ` Skip Tavakkolian
2022-01-25  7:48   ` Pavel Klinkovský
2022-01-25  8:02     ` Re[2]: " Alexandr Babic
2022-01-25  8:26       ` Alex Musolino
2022-01-25  8:33         ` Pavel Klinkovský

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