Does PTHREAD_MUTEX_INITIALIZER work?

[Petri Helenius]

Anders Torger wrote:

> PTHREAD_MUTEX_INITIALIZER is defined as NULL in 5.2.1 too. I shall test
>
>the software on that platform later though. However, it would be nice 
>if someone could explain this NULL thing (it is not NULL on other 
>pthread implementations I have looked at). Perhaps there is a perfectly 
>natural explanation?
>
>  
>
NULL is the only value you can safely set a pointer to which cannot be a 
valid value?

Pete