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Re: [avr-libc-dev] question: promotion to integer
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From: |
E. Weddington |
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Subject: |
Re: [avr-libc-dev] question: promotion to integer |
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Date: |
Thu, 31 Oct 2002 14:31:08 -0700 |
On 31 Oct 2002 at 10:48, E. Weddington wrote:
> Hello all,
>
> In avr gcc,
>
> sizeof((unsigned char)~PIND) == 1
>
> sizeof(~(unsigned char)PIND) == 2
>
> So, the NOT operator promotes the value to an integer? I can't
> rembember, is this Standard C, or artifact of compiler?
>
> Thanks,
> Eric
I think I answered my own question. I finally found a copy of the
Standard (which date I'm not sure) and it says that bitwise operators
promote their operands to int.
Eric