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Simplify the recommended alternatives to rand() #22873

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Simplify the recommended alternatives to rand() #22873

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fa79998
Simplify the recommended alternatives to rand()
robrwo Dec 23, 2024
14c0691
Update known_pod_issues.dat for tests
robrwo Dec 26, 2024
10ead53
Replace another reference to Math::TrulyRandom with Math::Random::ISAAC
robrwo Dec 26, 2024
de0535c
Add a reference to Crypt::URandom to the FAQ
robrwo Dec 26, 2024
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7 changes: 5 additions & 2 deletions cpan/perlfaq/lib/perlfaq4.pod
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Expand Up @@ -410,11 +410,14 @@ L<http://www.perlmonks.org/?node_id=803632>).
Several CPAN modules in the C<Math> namespace implement better
pseudorandom generators; see for example
L<Math::Random::MT> ("Mersenne Twister", fast), or
L<Math::TrulyRandom> (uses the imperfections in the system's
timer to generate random numbers, which is rather slow).
L<Math::Random::ISAAC> ("Indirection, Shift, Accumulate, Add, and Count", really fast).
More algorithms for random numbers are described in
"Numerical Recipes in C" at L<http://www.nr.com/>

There are several modules to sample system sources of random numbers,
which are useful for security tokens and cryptography. For example,
L<Crypt::URandom>.

=head2 How do I get a random number between X and Y?

To get a random number between two values, you can use the C<rand()>
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8 changes: 2 additions & 6 deletions pod/perlfunc.pod
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Expand Up @@ -6669,13 +6669,9 @@ including:

=over

=item * L<Data::Entropy>
=item * L<Crypt::URandom>

=item * L<Crypt::Random>

=item * L<Math::Random::Secure>

=item * L<Math::TrulyRandom>
=item * L<Crypt::PRNG>

=back

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5 changes: 3 additions & 2 deletions t/porting/known_pod_issues.dat
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Expand Up @@ -75,7 +75,8 @@ Cpanel::JSON::XS
cpanp(1)
CPANPLUS
crypt(3)
Crypt::Random
Crypt::PRNG
Crypt::URandom
ctime(3)
curl(1)
Dancer
Expand Down Expand Up @@ -217,8 +218,8 @@ Math::Big
Math::BigInt::Constant
Math::BigInt::GMP
Math::BigInt::Pari
Math::Random::ISAAC
Math::Random::MT::Perl
Math::Random::Secure
Math::TrulyRandom
mbrlen(3)
mbrtowc(3)
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