I want to have a hash table where access to every element should be atomic and I don't want to use locks. Can I use pointers to refer variables of type sig_atomic_t?
No. sig_atomic_t
is for signal handlers, it doesn't do anything to make values visible to other CPU's or to impose any ordering of memory accesses. C1x and C++0x have new atomic types ( <stdatomic.h>
for C1x).
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