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ufo
on April 9, 2022
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rand() may call malloc()
Does anyone know why the reentrancy layer needed malloc in the first place? I didn't understand that part.
saagarjha
on April 9, 2022
[–]
It's used to store internal random state.
ufo
on April 9, 2022
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parent
[–]
But why is the internal RNG state dynamically allocated? I would have expected it to be a static variable allocated only once.
veltas
on April 9, 2022
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root
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[–]
So that you can call it in different threads or in a signal without clobbering another invocation's state.
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