Re: Taking reference to function

[targetsmart]

Both have proper uses, generally it is good to use \&thefunc

but I will use 'funcname', when have a function template configured to be executed, where it can be easily changed, by adding a new function to the module and just adding a name to the configuration.
In which case in the main program, i read the configuration and just check whether that function exists using 'can', and execute it (if 'use strict' is in action, i will use 'no strict "refs"' inside that particular block so it won't throw error).

moreover the using 'funcname', does an additional lookup in the symbol table I reckon.

[GrandFather]

can returns a code ref so you don't need to turn off strictures, just:

use strict;
use warnings;

my $funcName = 'doit';

if (my $cando = main->can ($funcName)) {
    $cando-> ();
}


sub doit {
    print "I done it\n";
}

Prints:

I done it

[SFLEX]

Telling someone to turn off strict refs is NOT a good idea, unless right after the functions action they turn it back on.
Besides why would you want to turn something off when you can get around the error.

[tilly]

If you turn off strict refs inside of a block, it is automatically on right after the block. I personally find it clearer to do this than to use a complex syntax the maintenance programmer may not know to fool strict.pm into not complaining.