Min/Max Chains We have improved optimization of chains ofstd::minandstd::maxas of Visual Studio 2022 version 17.0. Say we have three blankets and we want to give one to our cat. The one we pick shouldn’t be too hard. It shouldn’t be too soft. It should be just right. We could...
} std::min/max were previously somewhat problematic for the optimizer because they take the values by reference, turning a direct access of a local variable into an indirect access through a pointer. The improvements to eliminate these indirect access cases for integers now also ap...
auto N = (std::min)(ZeDeviceCount, NumEntries); if (Devices) Expand Down Expand Up @@ -318,9 +318,10 @@ ur_result_t urDeviceGetInfo( Device->QueueGroup[ur_device_handle_t_::queue_group_info_t::Compute] .ZeIndex >= 0; if (RepresentsCSlice) MaxComputeUnits /= Device->RootDevi...
按照https://learn.microsoft.com/en-us/cpp/standard-library/time-zone-class?view=msvc-170 看起来...
view=msvc-170 看起来应该首先使用get_tzdb（），如下所示
在赋值后可以使用 std::any_cast 将 std::any 所存储的值转换成特定类型，如果 std::any 中存储的...
編譯器警告 (層級 3) C4423 'std::bad_alloc':將由類別 ('type') 攔截 (第number 行) 編譯器警告 (層級 3) C4424 'type1' 的攔截之前是 'type2' (第 number 行);如果擲回 'std::bad_alloc',可能發生無法預期的行為 編譯器警告 (層級 1) C4425 無法將 SAL 註釋套用至 '......
本主題將基於示範目的說明未來的概念。 當您需要計算值以供日後使用的異步工作時,建議您使用std::future或concurrency::task。 工作是可分解成其他更精細計算的計算。未來是異步工作,可計算值以供日後使用。 若要實作未來,本主題會定義 類別async_future。 類別async_future會使用這些並行運行時間的元件:concurrency::...
std::memchr now meets the additional C++17 requirement of stopping as soon as a matching byte is found. Improve code generation for 16-bit interlocked add. Coalesce register initialization on AVX/AVX2. Improve code generation for returns of structs consisting of 2 64-bit values. ...
(std::array<int, 1024>& arr) // Does not get vectorized on MSVC { for(std::ptrdiff_t i=0; i<std::ssize(arr); i++) { arr[i] = std::min(arr[i], 2024); } } void min_transform(std::array<int, 1024>& arr){ // Does not get vectorized on MSVC std::trans...