On Jul 2, 10:04 pm, [EMAIL PROTECTED] (John W. Krahn) wrote: > howa wrote: > > On 7月2日, 下午11時59分, [EMAIL PROTECTED] (John W. Krahn) wrote: > >> howa wrote: > >>> Hi, > >> Hello, > > >>> I want to have a max range of rand function, so I use > >>> my $rnd = rand(4294967295) ; > >>> However, is it safe to use so, e.g. in 32 bit system? > >> rand() returns a floating point number that is based on RANDBITS and not > >> the size of the CPU registers, so to see how many bits rand() uses run > >> this on the command line: > > > But what should be the max. input to the rand() function and how > > large it can return? > > It depends on how many RANDBITS your version of Perl supports. > > > Since I assign to $rnd as the result, then it must be stored as an > > integer. > > No. > > perldoc -f rand > [snip] > Apply "int()" to the value returned by "rand()" if you want > random integers instead of random fractional numbers. > > John > -- > Perl isn't a toolbox, but a small machine shop where you > can special-order certain sorts of tools at low cost and > in short order. -- Larry Wall
I enjoy leaving the fractional part (mantissa?) on there as a 'bump' when arbitrary ordering operations follow. -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] http://learn.perl.org/
