Re: [Dev-C++] Decimal 1 Byte ?

[Robert A. <ral...@gm...>]

Two points.... first is everything in computers is binary.. even the
Text of this e-mail,  everything above that depends on how you
interpet the data.

(the following excludes unicode which complicates plain text but...read one=
)

Even in a  'plain text' file the Text is really ASCII where 'A' is 65, etc.=
..
that 65 is not stored are the digit 6 followed by 5 because neither 6
nor 5 are binary.... everything has to be stored as a series of zeros
and ones ... usually (and this again depends upon interpetation) they
are handled in series of 8 bits ( a series of 8 zeros and/or ones)
which allow the binary numbers which correspond to the decimal numbers
0 to 255.

So your problem has 3 sub problems...
1 to read the file=20
2 to interpet the data as binary
3 to print it out

Focusing on part 2... most of the options to read data will return you
a byte (8 bits long) which you will usually work with as a numerical
value ranging from 0 to 255.

I will assume that you know how to convert from decimal to binary(if
you don't let me know and I can explain the two different methods I
know...if you can't follow the one you should be able to follow the
other).

You could do something as simple and as long as a huge if/them/else or
preferably CASE statement where you do something like:

switch (i)
case(0) :  std::cout << "00000000" ; break
case(1):   std::cout << "00000001" ; break
...
...

Or you could do someting as complicated as use an algorithm to do a
conversion and print out the values as strings..


Or alterbatively there is probably a modifier to std::out to change
the output base to binarty...

hope this helps,
Robert


On 7/3/05, Scott <fre...@ve...> wrote:
> =20
> Does anyone, or can anyone help me write a simple console app,=20
> to scan a file and dump or display it's contents as "Decimal 1 byte  bina=
ry"
> even just some info, on what i would do to view a file as decimal 1byte..=
.=20
> would help,=20
>  =20
> i.e=20
>  =20
> I want to display or dump to a text file something like...=20
> the following:=20
> ----------------------------------------------------------------
> 00000020 105 100   0   0  76  65=20
> 00000040  84  83   0   0   0  0=20
> 00000060   0   6  86  77  65=20
> ----------------------------------------------------------------
> Anyone have any links, or where i should be looking for more info,=20
> i have done google searches without much luck.=20
>  =20
> Thanks,=20
>=20
> Cheers,=20
> Scott.=20
>  =20
>  =20
>