tains()  Construct string(_view) From nullptr  basic_string::resize_and_overwrite()  Monadic Operations for std::optional  Stacktrace Library  Changes to Ranges Library  Changes to Views Library tains()  Construct string(_view) From nullptr  basic_string::resize_and_overwrite()  Monadic Operations for std::optional  Stacktrace Library  Changes to Ranges Library  Changes to Views Library tains()  Construct string(_view) From nullptr  basic_string::resize_and_overwrite()  Monadic Operations for std::optional  Stacktrace Library  Changes to Ranges Library  Changes to Views Library

Directive  Text Formatting  Math Constants  std::source_location  [[nodiscard(reason)]]  Bit Operations  Small Standard Library Additions5 Agenda  New keywords:  concept  requires  constinit pointer  Use global non-member atomic operations, e.g. std::atomic_load(), atomic_store(), …  Error-prone, easy to accidently not use global non-member atomic operations  C++20: atomic>  Might use mutex internally  Global non-member atomic operations are deprecated36 Atomic Smart Pointers template class concurrent_stack { struct Node { T t; shared_ptr next; };

schedule schedule connect receiver Operation state return32 OPERATIONS EXECUTE OUTSIDE-IN Receiver Operation state start33 OPERATIONS EXECUTE OUTSIDE-IN Receiver Work is scheduled on the thread thread pool Time passes…. A thread in the pool picks up the work and executes it34 OPERATIONS EXECUTE OUTSIDE-IN Receiver set_value set_error set_done A thread in the pool picks up the work work and executes it Inner-most receiver is notified that the work is complete35 OPERATIONS EXECUTE OUTSIDE-IN when_all then schedule Every adaptor has a chance to run code when the operation

obj->set_cohort(&cohort_); obj->retire(); } }; Cohort Implementation Requirements • Fast and scalable operations including destruction • Seamless support for dependent retirement (objects in the same cohort) cohortObjects_; // etc }; LockedHeadOnlyList: • Pop all operation locks list for other pop all operations. • Push operations are lock-free. • ~hazard_pointer_cohort() • Pops all objects and locks list • Extracts

d3;  Use of predefined SI rational constants: duration d4;12 Durations – Operations  Working with durations // Define 2 durations: // one expressed as minutes, the other as seconds durations. if (d3 > d4) { cout << "d3 > d4"; } else { cout << "d3 <= d4"; }13 Durations – Operations  Working with durations // Increment d4 (= 14sec) with 1. ++d4; // 15sec // Multiply d4 d4.count(), d5.count(), d6.count()); // 10min + 30sec = 10.5min or 630sec14 Durations – Operations  Converting durations // Create a duration of 30 seconds. duration d7 { 30 }; // Convert

Features 6 Web Portal • Based on open source Clarity • Image operation full capabilities • Batch operations Restful API • Complete API for integration • Swagger API doc Replication • Multiple filters Schedule, immediate and manual trigger Access Control • RBAC • AD/LDAP integration Audit Log • Operations recorded for audit Distribution Policy • Based on content trust • Based on vulnerability • Based

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(see P0019R8): • Distinct single-threaded and multi-threaded parts • Pay the cost for atomic operations only when necessary • Distinct non-conflicting and conflicting parts • Layout compatibility;