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From: Andy Howell <spam-andy-be-howell-gone@austin.rr.com>
To: gcc-help@gcc.gnu.org
Subject: pointer arithmetic for alignment on short or int boundry
Date: Sun, 21 Sep 2003 13:56:00 -0000	[thread overview]
Message-ID: <3F6DAD38.4060101@austin.rr.com> (raw)

I need to calculate an address on a short or int boundry. For some 
reason this is not working:

char *a;

a = (a + 1) & ((char*) -2));

Gcc 3.3 on Solaris complains:

error: invalid operands of types `char*' and `
    char*' to binary `operator&'

Why shouldn't I be able to mask off the low bit?

Thanks,

	Andy

             reply	other threads:[~2003-09-21 13:56 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-09-21 13:56 Andy Howell [this message]
2003-09-21 14:55 ` Burak Serdar
2003-09-21 15:42   ` Andy Howell
2003-09-21 15:40 ` Eljay Love-Jensen

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