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cmpxchg only support exchange on int operands, but pointer values can be very useful here, e.g. stack<T> in a linked-list, the top can be atomic<Node<T>*>. in clang++, cmpxchg operations on atomic<T*> are bitcasted i64 and do the operation, which is ugly. Any reason or concern why cmpxchg doesn't support pointer operands? Thanks -------------- next part