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On 04/10/2017 10:17 AM, Andreas Schwab wrote:
On Apr 07 2017, Stefan Liebler <stli@linux.vnet.ibm.com> wrote:/* ATOMIC_EXCHANGE_USES_CAS is equal to 1 if atomic_exchange operationsWhy 1 exactly, and not just non-zero? Andreas.
This points out that there is only a true/false choice and all architectures have to define it. __HAVE_64B_ATOMICS is used in the same way./* This is equal to 1 iff the architecture supports 64b atomic operations. */
Bye Stefan
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