Agenda  Compile-Time Rational Numbers  Durations  Clocks  Time Points  Dates  Time Zones 4 Agenda  Compile-Time Rational Numbers  Durations  Clocks  Time Points  Dates Dates  Time Zones5 Compile-Time Rational Numbers  Defined in  Work with rational numbers at compile time  Always normalized representation  Needed for durations in the library6 library6 Compile-Time Rational Numbers  Define a rational number: using r1 = ratio<1, 60>; // Represents 1/60  Retrieve numerator and denominator intmax_t num { r1::num }; intmax_t den { r1::den };

Vasiliki (Vasia) Kalavri
 vkalavri@bu.edu CS 591 K1: Data Stream Processing and Analytics Spring 2020 2/06: Notions of time and progress Vasiliki Kalavri | Boston University 2020 Mobile game application 4 Vasiliki Kalavri | Boston University 2020 • Processing time • the time of the local clock where an event is being processed • a processing-time window wouldn’t account for game activity while in the tunnel • results depend on the processing speed and aren’t deterministic • Event time • the time when an event actually happened • an event-time window would give you the extra life •

More Tests Production Detecting errors early in the development pipeline reduces costs, saves time, minimizes risk, and improves efficiency.Error Reporting - Goals Error messages should be clear, risks if used improperlyCompile-time Validation CompilerMech Suit or Swim? Choose between safety and flexibilityMech Suit that Swims Safety and flexibility at the same time Source: Gurren LaganRuntime report_error(error); } }Runtime Error Reporting Runtime error reporting can be used with compile-time error detection void foo(){ constexpr auto error = detect_error(); if constexpr (error) {

compile time instrumentation Przemysław Delewski February 18, 2025 Warsaw, PolandAgenda 1. Short bio 2. Observability domain 3. OpenTelemetry 4. History of OpenTelemetry go compile time instrumentation to work on brand new navigation stack. I’m also founding member of the OpenTelemetry Go compile-time instrumentation project https://github.com/open-telemetry/community/blo b/main/projects/go-compile-instrumentation -instrumentation/ Blog post https://opentelemetry.io/blog/2025/go-compile-time-instrumentation/Thank you! Go compile time instrumentation Przemysław Delewski

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in game jams. • Enjoy experimenting, exploring, and trying new things in C++.Dive Into Compile-Time Parsers Libraries Use Cases Implementation Techniques Reflection Language Evolution API Design overloading • Domain specific languages • Open source compile-time libraries • API • Design • Implementation details • Using compile-time parsers • Reflection • Examples: functions, types, treesParser parser("SELECT id, name WHERE age > 42"); std::vector result = func(cats);Example – Compile Time Parsers std::vector cats = { /*...*/ }; constexpr auto parser = create_parser(); constexpr

CurveBS I/O processing flow Before introducing IO processing flow, we first describe the overall architecture, data organization and topology structure of CURVE. CurveBS uses the central tend, etc in control plane. 2. Depending on libCurve, the application must be restarted every time the library is updated. To solve this problem, the CurveBS Client has been optimized to decouple sockets. l Nebdserver: Accepts requests from NEBDClient and calls Curve Client for corresponding processing. it can receive requests from different NEBDClients.3. Through the above splitting, NebdClient

Stephen Brawner, Robottimo Robotics at Compile Time Optimizing Robotics Algorithms with c++’s Compile-Time FeaturesAbout me • Robotics Software Consultant based in Portland, OR • Chief Roboticist types of robots • Parses robot description from a plain-text file format • Requires lots of run-time decisions • Generally maintained by a corporate entity • ROS and ROS 2 ecosystem (Open Robotics/ platforms in mind • Generally required for real-time controls• video of FLX BOTRobotics Hardware Development • Requirements known well ahead of time • Mechanical and electrical designs are locked-in

CPPCON / 16TH SEPTEMBER 2020 CPPCON / 16TH SEPTEMBER 2020 JUST-IN-TIME COMPILATION: JUST-IN-TIME COMPILATION: THE NEXT BIG THING? THE NEXT BIG THING? BEN DEANE & KRIS JUSIAK - BEN DEANE & KRIS JUSIAK 3 . 2WHAT IS JITTING? WHAT IS JITTING? INSTEAD OF AHEAD-OF-TIME (AOT), AKA "THE NORM": IT'S LIKE THE APPLICATION INSTEAD OF AHEAD-OF-TIME (AOT), AKA "THE NORM": IT'S LIKE THE APPLICATION (/LIBRARY) IS 3 . 2WHAT IS JITTING? WHAT IS JITTING? INSTEAD OF AHEAD-OF-TIME (AOT), AKA "THE NORM": IT'S LIKE THE APPLICATION INSTEAD OF AHEAD-OF-TIME (AOT), AKA "THE NORM": IT'S LIKE THE APPLICATION (/LIBRARY) IS

Boston University 2020 CS 591 K1: Data Stream Processing and Analytics Vasiliki (Vasia) Kalavri
 vkalavri@bu.edu Spring 2020 1/23: Stream Processing Fundamentals Vasiliki Kalavri | Boston University traditional data processing applications, we know the entire dataset in advance, e.g. tables stored in a database. A data stream is a data set that is produced incrementally over time, rather than being being available in full before its processing begins. • Data streams are high-volume, real-time data that might be unbounded • we cannot store the entire stream in an accessible way • we have to

Processing XML and Spreadsheet in Go 续 日 Gopher China Conference Beijing 2021 6/26 - 6/27 Self Introduction The author of the Excelize - Go language spreadsheet library. Familiar with Go language Complex XML 02 • Partial Load • Namespace & Entity • Ser/Deserialize Idempotence High Performance Processing 03 • XML Schema Definition • DOM or SAX OOXML Spreadsheets 04 • Excel XML Specification • unsignedLong, unsignedShort time.Time date, dateTime, gDay, gMonth, gMonthDay, gYear, gYearMonth,time anyType anySimpleType all complex types gYearMonth gYear gMonthDay gDay gMonth date time dateTime duration