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

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

> -----Original Message-----
> From: dev...@li...=20
> [mailto:dev...@li...] On Behalf=20
> Of Sudhir K KRISHNAWARRIER
> Sent: Thursday, June 19, 2003 1:10 AM
> To: dev...@li...
> Subject: RE: [Dev-C++] rand()
>=20
> May be it is a little better to use the time in=20
> micro/milliseconds in some form as the seed instead of time=20
> (NULL) which returns seconds. This will make sure that two=20
> instances of the program started almost the same time will=20
> not get the same random number sequence. In SVR4/BSD,=20
> gettimeofday will do the trick but not sure what is the POSIX=20
> way of getting microseconds.


time() is not returning seconds it is returning time_t which can be =
whatever
the implementation wants. Two subsequent calls of time() cannot return =
the
same value since it represents the calendar time (day. month, year, =
hour,
minutes, seconds...).





Ioannis Vranos
=20
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