We're using warnings as recommended by pbp, reading a mainframe file and trying to test if a bit is set to do some additional logic, we get this warning:
Argument "a" isn't numeric in bitwise and (&) at ...
Is there a way to make "a" understood so the warning will not come out? Here is a one-line example to get the error:
perl -e 'use warnings; $a = "a"; if ($a & 1 << 7) {print "happy\n"}'

In reply to Warnings and bitwise and by MedicLdr

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