I made std.time for Phobos, please review my code.

[Steven Schveighoffer]

On Tue, 27 Apr 2010 13:26:25 -0400, SHOO <zan77137 at nifty.com> wrote:

> Michel Fortin さんは書きました:
>> On 2010-04-27 04:55:28 -0400, SHOO <zan77137 at nifty.com> said:
>>
>>> By these reasons, I made std.time module as the first step of the
>>> contribution for Phobos.
>>  Looks nice. I think defining structs as you did to handle date and  
>> time is the way to go.
>>  I've done something similar in the past to store dates and times which  
>> I like a lot. What I did was just a storage format, but templates  
>> allowed me to store dates and time spans with any precision while  
>> exposing always the same public API.
>>  I'm pasting my code below in case it can inspire you (note that this  
>> code predates the new operator overloading syntax), and feel free to  
>> use any of this under the Boost license if applicable.
>
> In the code that I wrote, it can express Time until December 31, 9999.  
> And, the precision of Span is 100 nanoseconds order.
> About the precision, I think that it is necessary and sufficient  
> condition.

Two other benefits to using 100NS increments: Windows FILETIME structures  
use that same resolution, and Tango uses that same resolution.  So we have  
easy compatibility throughout many systems, while at the same time  
capturing a wide enough range to last for 8000 years :)

-Steve