[Haskell-cafe] Re: how to use a literal string with bystring useAsCString

[minh thu]

2009/2/9 Colin Adams <colinpauladams at googlemail.com>:
> 2009/2/9 minh thu <noteed at gmail.com>:
>
>>
>> Anyway, I'd like to get my utf-8 string to C but in ascii (or latin1).
>>
>> How can do this ?
>
> You can't (in general).
> If the data just happens to be ascii, then your utf-8 string will BE
> ascii (there is no way to tell the difference). If it just happens to
> be in the range of latin-1(all codepoints 0-255), then you have to
> convert it to latin-1. But otherwise, you are stuck.

That's what I thought, but in the code attached before, the output of
the program is not what is expected, i.e. I have :
0xb7d7e018
0xb7d7e040
Why ?

Thu