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Is the code, as shown in the HN headline, correct? An exclamation mark seems to have gone missing, compared to the Reddit version.

by Pinus 3y ago

gs17 3y ago
It should be p != &I as the condition.
tapirl 3y ago
Sorry, it looks the HN backend edited the title automatically. The condition should be "p != &I". (BTW, the HN backend also auto changed all "i" to "I").