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From: Fernan Bolando <fernanbolando@mailc.net>
To: 9fans@9fans.net
Subject: [9fans] zero length arrays in gcc
Date: Wed, 23 Sep 2009 02:49:44 +0800	[thread overview]
Message-ID: <1d5d51400909221149u32faccd7ue23a538afa523a23@mail.gmail.com> (raw)

Hi all

nhc98 uses a few of

static unsigned startLabel[]={};

which is a zero length array. It appears that it uses this as
reference to calculate the correct pointer for a bytecode.

pcc does not allow this since zero lenth array is another gcc
extension. I tried declaring it as

static unsigned startLabel[];

The resulting bytecode can then be compiled however it will only
crash. I traced it a pointer that tries to read an unallocated section
in memory.

Is it possible emulate zero pointer in pcc??

--
http://www.fernski.com



             reply	other threads:[~2009-09-22 18:49 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-09-22 18:49 Fernan Bolando [this message]
2009-09-22 19:19 ` Bakul Shah
2009-09-25  8:14   ` Fernan Bolando
2009-09-27 17:01     ` Russ Cox
     [not found] <<1d5d51400909221149u32faccd7ue23a538afa523a23@mail.gmail.com>
2009-09-22 18:58 ` erik quanstrom

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