счетчике, который расположен внутри базы данных Firebird. Вы можете создать его, задав имя: CREATE GENERATOR GenTest; Затем вы можете получать его текущее значение, увеличивать его или уменьшать точно так СУБД Firebird 2 и более поздних версиях ключевое слово SEQUENCE может быть использован как синоним GENERATOR. Фактически, рекомендуется использовать синтаксис SEQUENCE во вновь создаваемом коде. Хотя слово не наделает бед.) Структура системной таблицы RDB$GENERATORS следующая: • RDB$GENERATOR_NAME CHAR(31) • RDB$GENERATOR_ID SMALLINT • RDB$SYSTEM_FLAG SMALLINT И для СУБД Firebird 2.0 и более старших

## +24 ## Designing C++ Code Generator Guardrails: A Collaboration Among Outreach and Development Teams and Users CB BAILEY & SHERRY SONTAG 20 24 September 15 - 20 Bloomberg Engineering ## Designing Designing C++ Code Generator Guardrails A collaboration between outreach and development teams & users CppCon 2024 September 16, 2024 Sherry Sontag, Technical Expert CB Bailey, Software Engineer least astonishment.” We were offering a modern set of guardrails for Bloomberg’s 20-year-old Code Generator. Others responded before we could. They said they weren’t the least bit surprised. Bloomberg

## +24 ## Limitations and Problems in std::function and Similar Mitigations and Alternatives ## AMANDEEP CHAWLA ## Limitations and Problems in std::function and similar constructs Amandeep Chawla | notifyTQ, std::function)> callback ); ## Lambdas // print all the elements of vector of int. std::for_each(c.begin(), c.end(), [(int i) { std::cout std::cout << i << ' "; }); // Sort the vector using a lambda function std::sort(v.begin(), v.end(), [](int a, int b) { return a < b; }); // find the object with id "c"

## +24 ## spanny 2: Rise of std::mdspan ## GRISWALD BROOKS ## 20 24 September 15 - 20 ##### DISCLAIMER: C++23... ish  understanding of std::mdspan layouts and accessors • how to write custom layouts and accessors • dispel common misconceptions about both ## how • motivations for std::mdspan - review std::mdspan declaration memory accessor improving memory access using asynchronicity ## how • motivations for std::mdspan - review std::mdspan declaration • layouts and their requirements • occupancy grids and default layouts

## A Long Journey of Changing std::sort Implementation at Scale ## DANILA KUTENIN ## WHO AM I? • Senior Software Engineer at Google • DC efficiency ## AGENDA FOR TODAY • History of sorting • Why have ordering of elements • std::sort, std::stable_sort, ranges::sort, etc std::sort(begin, end); std::ranges::sort(cont); ## REMINDERS • Sorting is the ordering of elements • std::sort, std::stable_sort, ranges::sort ranges::sort, etc std::sort(begin, end, comp); std::ranges::sort(cont, comp); ## QUICKSORT ## QUICKSORT • Quick sort ## QUICKSORT • Quick sort • Take any element ## QUICKSORT • Quick sort • Take any

 Firebird Generator Guide A guide on how and when to use generators in Firebird Frank Ingermann Version 0.3, 27 June 2020 2 2. Generator Basics ..... 3 2.1. What is a generator? ..... 3 2.2. What is a sequence? ..... 3 2.3. Where are generators stored? ..... 3 2.4. What is the maximum value of a generator? ..... 4 2.4.1. Client dialects and generator values ..... 5 2.5. How many generators are available in one database? ..... 5 2.5.1. Older InterBase and Firebird versions ..... 6 2.6. Generators and transactions

## +21 ## Bringing Existing Code to CUDA Using constexpr and std::pmr BOWIE OWENS 20 21 October 24-29 ## Outline • Introduction • Memory • Host vs Device Functions • Return on Investment • Concluding Allocation // cpu std::vector x(N); // ???? std::vector y(N); // ... ## std::pmr • Added in C++17: • std::pmr::memory_resource • std::pmr::polymorphic_allocator • std::pmr::vector std::pmr::vector • std::pmr::monotonic_buffer_resource // ... ## Memory Allocation // gpu unified_memory_resource mem; std::pmr::vector x(N, &mem); std::pmr::vector y(N, &mem);

## +23 ## I s std::mdspan a Zero-overhead Abstraction? ## OLEKSANDR BACHERIKOV ## I s std::mdspan a Zero-overhead Abstraction? Oleksandr Bacherikov Snap Inc ## What is std::mdspan? It's a view to C++ If the matrices are contiguous in memory, then we can treat them as ranges and simply use std::transform $$ \{-5,\quad5,\quad-3,\quad1,\quad4,\quad0\} $$ $$ \{3,2,1,3,-5,4\} $$ $$ \{-2 4*r8], xmm0 ## V ectorization is great for performance, not great for slideware #### clang16.0.4 -01 -std=c++20

push	rbx	je	.LBB0_6
test	rdi 0 码力 | 75 页 | 1.04 MB | 1 年前 3 Vectorizing a CFD Code With std::simd Supplemented by Transparent Loading and Storing ## +24 ## V ectorizing a CFD Code With `std::simd` Supplemented by (Almost) Transparent Loading and Storing OLAF KRZIKALLA ## VECTORIZING A CFD CODE WITH STD::SIMD SUPPLEMENTED BY (ALMOST) TRANSPARENT deduction to load and store std::�:� and scalar variables ☑ syntactically equalize scalar and vectorized code ## The talk: ■ share experience with vectorization using std::�md ■ introduce the SIMD_ACCESS → Single Instruction Multiple Data (SIMD) For more details Matthias Kretz' Cppcon talk about std::simd: https://youtu.be/LAJ_hywLtMA ## Background: Vectorization void add_array(double* x, double* 0 码力 | 58 页 | 2.68 MB | 1 年前 3 C++23: An Overview of Almost All New and Updated Features Library String Formatting Improvements Standard Library Modules std::flat_(multi)map / std::flat_(multi)set std::mdspan std::generator basic_string(_view):contains() • Construct string(_view) From Operations for std::optional • Stacktrace Library • Changes to Ranges Library • Changes to Views Library std::expected std::move_only_function<> std::spanstream std::byteswap() std::to_underlying() Library String Formatting Improvements Standard Library Modules std::flat_(multi)map / std::flat_(multi)set std::mdspan std::generator basic_string(_view):contains() • Construct string(_view) From 0 码力 | 105 页 | 759.96 KB | 1 年前 3 共 1000 条 1 2 3 4 5 6 100 前往 页 相关搜索词 генераторыпоследовательностиCREATE GENERATORSEQUENCENUMERIC(18)Code Generator GuardrailsC++Bloombergteams collaborationXSD schema filesstd::functionMitigationsAlternativesPerformanceOptimizationstd::mdspanlayoutaccessorasynchronouspolicystd::sortC++标准库排序算法严格弱序调试模式generatorsequenceCREATE SEQUENCERDB$GENERATORSGEN_IDconstexprstd::pmrCUDA性能优化内存管理zero-overhead abstractionmulti-dimensional arraysChandler CarruthC++ Conferencestd::simdSIMD_ACCESStransparent loading/storingvectorizationcompiler optimizationExplicit Object ParametersString Formatting Improvementsstd::generatorstd::expected