Re: character encoding confusion

[Pascal J. Bourguignon]

patrol <patrol_boat@hotmail.com> writes:

> I created a program in C that requires the degree symbol. The mode
> line indicates that Emacs is using the Latin-1 character encoding.
> According to Latin-1 encoding tables, the degree symbol is encoded as
> decimal 176, so that's what I used in my code. But when the character
> printed, it wasn't the degree symbol; it was a "shaded box" looking
> thing. Then I looked at an ASCII table here (http://
> www.asciitable.com/), and it says that 176 is indeed the shaded box

176 is not an ASCII code.  ASCII contains only codes from 0 to 127.


> that was printed in my program, and the degree character was decimal
> 248. So I used 248 in my code, and I got the degree symbol I wanted.
>
> But all this leaves me with the question that if Emacs was supposedly
> encoding the file in Latin-1, why doesn't the code for the degree
> symbol match up with the Latin-1 table? Why does it instead match up
> with some non-standard "extended" ASCII that I just happened to come
> across.
>
> Can anyone shed light on this?

Remember that C only deals with integer.  There is no character type in C.  

So, what happens when you call: printf("%c",176); ?

Have a look at setlocale, LC_ALL, etc, and libiconv.


-- 
__Pascal Bourguignon__                     http://www.informatimago.com/