id summary reporter owner description type status milestone component version severity resolution keywords cc 9193 Add DCAS support for Windows 32-bit Gavin Lambert timblechmann "Currently Boost.Atomic does not support 64-bit atomics as lock-free when compiled for 32-bit Windows. The attached patch adds this ability by using _InterlockedCompareExchange64 (which is the only 64-bit intrinsic available for x86) to synthesise the other operations, albeit with lesser performance than if a ""real"" atomic were available." Patches closed To Be Determined atomic Boost 1.54.0 Problem fixed windows x86