Re: [boost] Cross-platform date/time problems

Subject: Re: [boost] Cross-platform date/time problems
From: Andrey Semashev (andrey.semashev_at_[hidden])
Date: 2009-11-02 14:37:31

Zachary Turner wrote:
> On Mon, Nov 2, 2009 at 12:38 PM, Andrey Semashev
> <andrey.semashev_at_[hidden]>wrote:
> 
>> Zachary Turner wrote:
>>
>>  Anyway, I don't think that bringing Windows-specific code to other
>>>> platforms is a good idea. If you want cross-platform code, use
>>>> cross-platform types, such as time_t, ptime or local_time.
>>>>
>>>>
>>>>  That's just it, I'm trying to use ptime.
>> Then why not simply send ptime over the network?
> 
> 
> Using what method?  by sending the result of ptime::ticks()?  If so, how do
> I reconstruct a ptime from the result of this?

IIRC, currently you have to separately serialize date and time. The date 
is simply a number of days since the base date. The time has ticks() and 
ticks_per_second() or something like that. So there is no problem to 
reconstruct the correct ptime on another machine, even with different 
time resolution capability.

> Also, the server that this
> information is being sent to is written in Java, and it needs to be able to
> understand whatever is sent across (i.e. extract day/month/year/etc
> information)

I don't see a problem with it. Anyway, I'm more inclined to improve 
ptime portability instead of porting FILETIME.