There's a built in pragma called constant which I'd probably reach for before trying to do something clever with typeglobs: 

$ perl -Mstrict -Mwarnings -le '
    use constant MYVAR => 3.14159;
    print MYVAR;
    use constant PI => 4 * atan2(1, 1);
    print PI;
'
3.14159
3.14159265358979

[download]

However, if you're stuck with the typeglob, I'd take a pragmatic approach and pick the one which involves the least typing (i.e. ${*myVar}). 

$ perl -Mstrict -Mwarnings -le '
    *myVar = \3.14159;
    print ${*myVar};
    print ${*myVar{SCALAR}};
    print $main::myVar;
'
3.14159
3.14159
3.14159

[download]

-- Ken

In reply to Re: Typeglobs and constant variables by kcott
in thread Typeglobs and constant variables by Anonymous Monk

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