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Re: gcc 4.1.2 is giving compilation error with unnamed structure of register const variable



Thanks a lot Ian for information. It helped me to fix the issue. 

--Murali.


Ian Lance Taylor-3 wrote:
> 
> Muralidhar <muralidharvvkmca@gmail.com> writes:
> 
>> Thanks for looking into this issue. The issue can be avioded by either
>> removing const or register from the declaration. but unfortunately i
>> required the combination of both in my testing snerious.
> 
> Using the "register" qualifier makes very little sense.  I can't
> understand why you would bother to test that.
> 
>> Do we have any compiler option to avoid this bug.
> 
> Not that I know of.  Unless you count "-Dregister=".
> 
> Ian
> 
>> Ian Lance Taylor-3 wrote:
>>> 
>>> Muralidhar <muralidharvvkmca@gmail.com> writes:
>>> 
>>>> I have a sample program which is compiling fine in GCC version 3.3.3
>>>> on SUSE Linux  with kernel 2.6.5,
>>>> but it is giving compilation error in GCC version 4.1.2 with SUSE
>>>> Linux kernel 2.6.16
>>>>
>>>>  >>Sample program <<
>>>> $ cat exam.c
>>>> #include <stdio.h>
>>>> int main()
>>>> {
>>>>    register const struct           { short l; unsigned char d[2]; }
>>>> vVRCU___I = { 2,"a" };
>>>>    register const struct           { short l;          char d[2]; }
>>>> vVRC____I = { 2,"a" };
>>>>
>>>>    return 0;
>>>> }
>>>>
>>>> $ gcc exam.c --> gcc 4.1.2
>>>> exam.c: In function ÃmainÃ:
>>>> exam.c:5: error: register name not specified for ÃvVRC____IÃ
>>>> exam.c:4: error: register name not specified for ÃvVRCU___IÃ
>>> 
>>> I think this is a bug.
>>> 
>>> To avoid the bug, remove the "register" keyword.  There is no reason to
>>> ever use the "register" keyword with current versions of gcc.
>>> 
>>> Ian
>>> 
>>> 
> 
> 

-- 
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