[boost] Date_time performance patch

From: Andrey Melnikov (melnikov_at_[hidden])
Date: 2005-08-25 16:06:39

Jeff Garland wrote:

>  there's a couple small changes for date-time.
> 
I have some performance tweaks for date-time.

Basically, tokenizer is replaced with faster token_iterator, 
convert_to_lower() converts inplace instead of copying. I wonder if 
boost::algorithm::tolower() should be used instead of convert_to_lower().

Unfortunately I don't have time to prepare the diff yet, because I need 
to separate the right changes from dirty hacks I used to squeeze some 
more speed or to support parsing broken date formats.

Andrey