Re: uc_width and wcwidth optimization

[Paolo Bonzini]

On 12/13/2011 11:32 AM, Bruno Haible wrote:
> I'm attaching the benchmark program I'm experimenting with. So far, it seems
> that locale_charset() is really slow, whereas the is_cjk stuff is not a big
> speed problem.
>
> I would love to have locale_charset be either faster or use some thread-safe
> cache. Do you have an idea how to realize this?

You can add a uc_width_internal that takes the encoding plus an int *. 
The pointed value can be "-1" for no cache, "0" for cached not CJK, "1" 
for cached CJK.

Paolo