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Date: Wed, 08 Jul 2020 12:40:15 +0200
From: Florian Weimer <>
To: Alexander Scherbatiy <>
Subject: Re: pthread_getspecific(3) with negative key

* Alexander Scherbatiy:

> The pthread_getspecific(3) specification describes:
>   "The pthread_getspecific() function shall return the thread-specific
> data value associated with the given key. If no thread-specific data
> value is associated with key, then the value NULL shall be returned. "

POSIX says this:

| The effect of calling pthread_getspecific() or pthread_setspecific()
| with a key value not obtained from pthread_key_create() or after key
| has been deleted with pthread_key_delete() is undefined.

So no check for a valid key is required.


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