Re: [avr-gcc-list] gcc binary

[Peeter Vois]

I have seen the 0b#### number format with Microchip compilers, GCC does
not support it. ( The 0b#### is sometimes very useful and makes code
more easy to read ).

Best Regards ...
Peeter


Ühel ilusal kenal päeval Wed, 3 Mar 2004 09:20:58 -0800
"Dave Hylands" <address@hidden> kirjutas:

> I've seen people create header files with stuff like:
> 
> #define       b00000000       0
> #define       b00000001       1
> #define       b00000010       2
> ...
> 
> This obviously begs to be created with a script of some sort, and you
> could create all of the different lenghts from 1 bit thru 8 bit quite
> easily.
> 
> --
> Dave Hylands
> Vancouver, BC, Canada
> http://www.DaveHylands.com/
> 
> P.S. Sorry for the double post Doug, I forgot to do reply all on the
> first one.
> 
> > -----Original Message-----
> > From: address@hidden
> > [mailto:address@hidden On Behalf Of Douglas Dotson
> > Sent: Wednesday, March 03, 2004 9:05 AM
> > To: cswiger; avr-gcc-list
> > Subject: Re: [avr-gcc-list] gcc binary
> > 
> > 
> > I've never seen the 0b notation before.
> > Where have you seen it before? I suspect it is some
> > vendor-specific extension. I don;t believe it conforms to ANSI C.
> > 
> > Doug
> > 
> > --- cswiger <address@hidden> wrote:
> > > This should be simple: does gcc not support binary
> > > ???
> > > I've a snipped of code that initializes an array
> > > with
> > > 
> > > char bitmap[38][7]={
> > >         //0
> > >         0b01110000,
> > >         0b10001000,
> > >         0b10011000,
> > >         0b10101000,
> > >         0b11001000,
> > >         0b10001000,
> > >         0b01110000,
> > > 
> > > etc, but I can't get 0bxxxx to work anywhere.
> > > 
> > > d=110; decimal
> > > d=0110; octal
> > > d=0x110; hex
> > > d=0b110; fails to compile with invalid suffix on
> > > integer
> > > constant.
> > > 
> > > Sorry if this is gcc and not avr specific.
> > > 
> > > --Chuck
> > > 
> > > 
> > > _______________________________________________
> > > avr-gcc-list mailing list
> > > address@hidden
> > > http://www.avr1.org/mailman/listinfo/avr-gcc-list
> > 
> > 
> > _______________________________________________
> > avr-gcc-list mailing list
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> > http://www.avr1.org/mailman/listinfo/avr-gcc-> list
> > 
> > 
> 
> 
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