I was meditating about advising List::MoreUtils:uniq
as a best practice, cause I thought it prevents any stringification problems.¹
Unfortunately it doesn't! :(
=> (["A"], "ARRAY(0x96cb0f0)", ["B"], "ARRAY(0x96cfd80)")
DB<128> @b= uniq @a
=> (["A"], ["B"])
thats quite disappointing for an XS-module ...
EDIT: Well at least it preserves order...
¹) I should explain, the problem with using hashes for set operations is that keys are stringified, that means working with anything which isn't a string or at least a scalar comes with a risk.
Practically it's not possible to safely use a ref as a key because of the resulting string is irreversible.
=> ("ARRAY(0x96d1f00)", 5)
improved code example...
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