@Crimson_Hat four pics of toilet paper holders with captions:
"non-zero value": holder with a roll of toilet paper
"0": holder with an empty toilet paper tube
"null": holder with nothing on it
"undefined": no holder
A sign apologising for no paper.
A massive toilet paper distribution facility, empty of shelves with the burglar alarm sounding.
Glued shut empty bog roll packet.
Frilly decorative loo roll cover. It's empty, though.
You search frantically through all the cupboards and cabinets and under the sink every which way and finally find something that does the job. It is never mentioned again.
@Crimson_Hat that about std::optional?
@Crimson_Hat I find the lack of seashells concerning.
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