atomic

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Andrey Semashev 92c57ac1e4 Added atomic operations that return the result of the operation.

These operations are useful for two reasons. First, they are needed by
atomic<> interface as the pre-increment/decrement and add/subtract operators
need to perform the corresponding arithmetics and return the actual result while
not exhibiting UB in case of overflow. This means that the operation must be
performed on the unsigned storage type in the backend. Second, the (op)_and_test
operations on ARM and PowerPC can be implemented in a more generic way on top of
the operations that return the result. And since we have those operations
internally, why not expose them to users.

Added tests and docs for the new operations. Also, added docs for the recently
added scoped names of the memory_order enum values.

Also, added a specialized "emulated" backend for the extra operations. This
backend makes better use of the fact that the operations are lock-protected
by avoiding any CAS-based loops.

2018-02-11 00:56:23 +03:00

api_test_helpers.hpp

Added atomic operations that return the result of the operation.

2018-02-11 00:56:23 +03:00

atomicity.cpp

Silenced MSVC warnings about 'this' being used in the constructor initialization list.

2015-08-22 20:47:56 +03:00

cf_arith_func_ptr.cpp

Updated to reflect changes from P0558R1 accepted into C++17.

2017-04-01 18:29:26 +03:00

cf_arith_mem_ptr.cpp

Updated to reflect changes from P0558R1 accepted into C++17.