Hello, Perl Monks- I'm looking for a better way to make a constant vector. Here is my current approach: 
# constants
use constant D50 => [96.42, 100, 82.49]; # ICC D50 XYZ

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At this point, the vector elements can be changed, so I make them read-only using the 'Internals' module. 
use Internals qw(SetReadOnly);

# set constant array elements to be read-only
for (@{(D50)}) {SetReadOnly(\$_)}

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This seems to work fine, but now I read from 'Internals.pod':

'In practice people have come to depend on these over the years, despite being historically undocumented, so we will provide some level of forward compatibility for some time. Nevertheless you can assume that any routine documented here is experimental or deprecated and you should find alternatives to their use.'

So, is there a better alternative for making a constant vector?

In reply to constant vector by wbirkett

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