## +23 ## Expressive Compile-time Parsers ## ALON WOLF ## 20 23 October 01 - 06 ## About me ## • Started learning C++ in high school with a passion for making video games ## Microsoft Visual C++ 2010 [Image](/uploads/documents/9/a/3/c/9a3c029d0db11594467a24cca15ee3f1/p3_1.jpg) ## Dive Into Compile-Time Parsers Libraries Use Cases Implementation Techniques Reflection ![Image](/uploads/document Expressiveness in C++ • Parsers • Operator overloading • Domain specific languages • Open source compile-time libraries • API • Design • Implementation details • Using compile-time parsers • Reflection

## +24 ## Compile-Time Validation ## ALON WOLF ## 20 24 September 15 - 20 ## Software Validation "Confirmation, through the provision of objective evidence, that the requirements for a specific makes it harder, but when you do it blows your whole leg off. — Bjarne Stroustrup — AZ QUOTES ## Compile-time Validation ## Player ## Mech Suit or Swim? ## Choose between safety and flexibility KEYNOTE: 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)

October 01 - 06 ## +23 ## Robotics at Compile Time: Optimizing Robotics Algorithms With C++'s Compile-Time Features ## STEPHEN BRAWNER ## About me • Robotics Software Consultant based in Portland, OR allocations, locks, and I/O in the STL • Perhaps a constmem or noallocate code decorators ## Compile-time Optimizations in Robotics Software ## Compile Time Optimizations in Robotics Software #include • With explicit classes and runtime dispatch • https://godbolt.org/z/9YMP3aqs5 • With better compile-time dispatch • https://godbolt.org/z/fKd9h4ofd ## Handling Joint Limits template

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Branching out: tee, demux, unzip Pick up results from STL algorithms Multiple inputs without tuples Expressive insertion in containers: map_aggregator, etc. Easy to implement CONTRIBUTIONS github.com/JoBoccara/pipes

## +21 ## Compile-Time Compression and Resource Generation with C++20 ## ASHLEY ROLL 20 21 October 24-29 ## I ntroduction Explore how C++20's constexper features can: • Generate data from code code at compile-time • Be used to construct: ☐ Lookup Tables Configuration Fuses ☐ Compressed Strings USB Descriptors ## Along the way • Introduce some libraries I created for this code • Discuss found building compile-time libraries ## constexpr in Brief • Specifies a variable or function CAN appear in a constant expression • Constant expressions can be evaluated at compile-time • eg: ■ Array

## +21 ## Testing Compile-time Constructs Within a Runtime Unit Testing Framework ## I GOR BOGOSLAVSKYI 20 21 October 24-29 ## We use C++ (14) for safety-critical applications that we deliver to our /p2_1.jpg) Errors have a high cost, so rigorous testing is a must We use increasingly more compile-time polymorphism and checks Question: how to test if something is compilable in a rigorous way? Imagine

opportunity 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/blob/main/projects/go-co

USD.) https://cppcon2023.sched.com/speaker/alonw125 CppCon 2023 )0 MDT Expressive Compile-time Parsers Alon Wolf Give Feedback rsday, Octob ![Image](/uploads/documents/a/7/a/f/a7afe

Nim ..... 28 Nim supports many programming styles ..... 30 Nim is efficient ..... 31 Nim is expressive and elegant ..... 32 Nim is open and free ..... 32 Nim has a community ..... 32 Nim is evolving variables ..... 164 Nested procedures and closures ..... 165 Anonymous procedures ..... 167 Compile-time proc execution ..... 168 Inlining procedures ..... 168 Recursion ..... 169 Converters . variable or other entity has a well-defined type. This feature catches most programming errors at compile-time, prevents run-time errors, and ensures optimal performance. At the same time, the static typing

Nim ..... 28 Nim supports many programming styles ..... 30 Nim is efficient ..... 31 Nim is expressive and elegant ..... 32 Nim is open and free ..... 32 Nim has a community ..... 32 Nim is evolving variables ..... 160 Nested procedures and closures ..... 162 Anonymous procedures ..... 164 Compile-time proc execution ..... 164 Inlining procedures ..... 165 Recursion ..... 165 Converters . variable or other entity has a well-defined type. This feature catches most programming errors at compile-time, prevents run-time errors, and ensures optimal performance. At the same time, the static typing