Is there an existing Perl max() function that finds the largest number in a list?

[Avner]

Hi,

I want to find the largest number in a list.
Is there an existing Perl max() function that will let me do that?
I couldn't find any such function in the Perl documentation.

I know it is easy to implement but, this is just an example for other
functionalities that I need. I don't want to reinvent the wheel every
time.

Thanks,
Avner

 

[A. Sinan Unur]

I want to find the largest number in a list.

http://search.cpan.org/~gbarr/Scalar-List-Utils-1.17/lib/List/Util.pm

This is a standard module, so it should already be installed on your
computer.

Sinan

 

[Gunnar Hjalmarsson]

I want to find the largest number in a list.
Is there an existing Perl max() function that will let me do that?
I couldn't find any such function in the Perl documentation.

See the CPAN module List::Util.

I know it is easy to implement but, this is just an example for other
functionalities that I need.

Not sure why you say that. For other functionalities you'll probably
need other built-in functions or modules... Or "reinvent wheels".

sub max {
my $max = $_[0];
for ( @_[ 1..$#_ ] ) {
$max = $_ if $_ > $max;
}
$max
}

 

[Gunnar Hjalmarsson]

http://search.cpan.org/~gbarr/Scalar-List-Utils-1.17/lib/List/Util.pm

This is a standard module,

Is it?

 

[A. Sinan Unur]

Is it?

Apparently not. However, it lives under C:\opt\Perl\lib on my installation
rather than C:\opt\Perl\site\lib, so I assumed it was a standard module.

Thanks for the correction.

Sinan

 

[DJ Stunks]

Apparently not. However, it lives under C:\opt\Perl\lib on my installation
rather than C:\opt\Perl\site\lib, so I assumed it was a standard module.

List::Util and Scalar::Util have been part of the Perl standard library
since 5.8.

-jp

 

[Gunnar Hjalmarsson]

List::Util and Scalar::Util have been part of the Perl standard library
since 5.8.

Confusing as always... If that's the case, why aren't they listed at
http://search.cpan.org/~nwclark/perl-5.8.8/ ?

 

[DJ Stunks]

Gunnar Hjalmarsson:

DJ Stunks:

Gunnar Hjalmarsson wrote:
Is [List::Util a standard module]?

List::Util and Scalar::Util have been part of the Perl standard library
since 5.8.

Confusing as always... If that's the case, why aren't they listed at
http://search.cpan.org/~nwclark/perl-5.8.8/ ?

I don't know, but they are listed in

http://search.cpan.org/~nwclark/perl-5.8.8/pod/perl58delta.pod#Modules_and_Pragmata

?

-jp

 

[Sisyphus]

Confusing as always... If that's the case, why aren't they listed at
http://search.cpan.org/~nwclark/perl-5.8.8/ ?

Looks to me that the only way to get the modules mentioned there is to
downoad the perl source - there's no place on CPAN where you can download
them individually. They are therefore, perhaps, all Nick's responsibility -
which could explain their listing under his ownership. (I'm sure Nick knows
how to delegate, btw.)

Conversely, I think that any core modules not mentioned there *can* be
downloaded individually from CPAN. They are the responsibility of someone
other than Nick - which would be the reason they are not listed under his
ownership.

Or something like that .....

Cheers,
Rob