RE: [Dev-C++] rand()

[Ioannis V. <iv...@em...>]

> -----Original Message-----
> From: dev...@li... 
> [mailto:dev...@li...] On Behalf 
> Of Per Westermark
> Sent: Thursday, June 19, 2003 3:51 AM
> To: Ioannis Vranos
> Cc: dev...@li...
> Subject: RE: [Dev-C++] rand()
> 
> 
> I'm not so sure about your definition of time().
> 
> time_t is a type - might be int, long, struct xx, ... depending on
> implementation and processor register width etc.


It's an intergal type.

 
> However, without checking the latest c++ standard, time() 
> returns time in
> seconds since epoch (seconds since 1969).


In UNIXoids (probably in POSIX standard) yes, and if I recall correctly it
is since january of 1970.


However this is not required by the standard and if I recall correctly
againn (which doesn't matter) this is not the case for Windows.


 
> With a resolution of one second, it is definitely possible to 
> call time()
> multiple times and get the same return value.


Yes you are right. Well in such case (for subsequent calls in less than
time_t) one can use a combination of time() and clock() etc). However one
could make a thread to wait for a couple of time_ts if he has such
considerations.



Ioannis Vranos
 
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