Numeric access to char[]

[nobody]

Regan Heath wrote:
> On Tue, 22 Aug 2006 01:30:23 +0200, Peter Thomassen 
> <info at peter-thomassen.de> wrote:
>> nobody schrieb am Dienstag, 22. August 2006 00:54:
>>>> how is it possible to work on the numeric value of a char[]? I'm
>>>> interested in bit shifting and arithmetic operations on the numeric
>>>> value.
>>>
>>> I am pretty sure you can just treat a char as a ubyte. The char type 
>>> is 8
>>> bits and unsigned. However if it makes it easier for you then you might
>>> try this:
>>>
>>>    int main(char[][] args)
>>>    {
>>>      ubyte[] num1 = cast(ubyte) args[0];
>>>    }
>>
>> When casting to ubyte[], this works fine. But I actually meant the 
>> numeric
>> value of char[], not the one of char. Do I need to construct it from the
>> single chars, or can I, for example, right-shift a whole char[] by 1?
> 
> Depends what exactly you're trying to do, perhaps this:
> 
> import std.stdio;
> 
> void main()
> {
>     char[] c = "azAZ";
>     int val;   
>     val = (cast(int*)c.ptr)[0..1][0];
>     //DEBUG
>     //writef("(%02d)%08b",c[0],c[0]);
>     //writef(",(%02d)%08b",c[1],c[1]);
>     //writef(",(%02d)%08b",c[2],c[2]);
>     //writefln(",(%02d)%08b",c[3],c[3]);
>     writefln("%032b",val);
>     val >>= 1;
>     writefln("%032b",val);
> }
> 
> Regan
> 
> p.s. nobody got the ascii values backward ('A' is 65, 'a' is 97)
> it's nobody's fault really.. nobody is to blame..

I sure did. :-)

> "nobody" I love the nick.. have you read the "Deverry" novels by 
> "Katherine Kerr"?
> http://www.math.ttu.edu/~kesinger/deverry/kerr.biblio.html
> 

Not yet but I am always looking for good stuff to read. I would guess Nobody 
comes from Dead Man on some subconscious level:

http://www.imdb.com/title/tt0112817/