designed ones!When talking about performance, we typically think about the function logic. We’ll see that a well designed function API can have an even larger impact.How will we compare performance? ● they might be, and often are, totally irrelevant to speed. 17 Credit to Khalil Estell: Firefox function distribution 157946 functions above (127B) 167404 functions below (127B)Understanding how machine problems? Pros: ● Default constructor before the function call is avoided 36Does it solve our problems? Pros: ● Default constructor before the function call is avoided Cons (unless we fully trust the

Back to Basics - Function Call Resolution Copyright © 2024 by Ben Saks and Dan Saks Back to Basics: Function Call Resolution by Ben Saks and Dan Saks September, 2024 1 Saks & Associates These notes +1-412-521-4117 (voice) service@saksandassociates.com saksandassociates.com 2Back to Basics - Function Call Resolution Copyright © 2024 by Ben Saks and Dan Saks About Ben Saks Ben Saks is the chief Ben earned a B.A. with Distinction in Computer Science from Carleton College. 4Back to Basics - Function Call Resolution Copyright © 2024 by Ben Saks and Dan Saks About Dan Saks Dan Saks is the president

Limitations and Problems in std::function and similar constructs Amandeep Chawla | Sr. Computer Scientist II amandeep@adobe.com | adchawla@gmail.com Image by Bruno Tornielli© 2024 Adobe. All Rights we can control. ▪ std::function© 2024 Adobe. All Rights Reserved. Adobe Confidential. Task Based Mechanism© 2024 Adobe. All Rights Reserved. Adobe Confidential. std::function ▪ Is a class template ▪ It is a general-purpose polymorphic function wrapper ▪ Instances of std::function can store, copy, and invoke any CopyConstructible Callable target ▪ Uses type-erasure under the hood to gain all the

20);Callable Function Function Overloading Function Object Lambda Expression CoroutineCallable Function Function Overloading Function Object Lambda Expression CoroutineFunction A function is a sequence packaged as a unit. ▪ Implementation ▪ Each function call creates a stack frame on a stack data structure ▪ The stack frame contains the private data of the function call (parameters, locals and the return return address) ▪ At the end of the function, the stack frame is deleted Function in mathematic != Function in programmingPure Function Pure Function (Mathematical function) ▪ Produce the same result when

C++ Automatic function / type deduction 7 . 2Copyright Jason Turner @le�icus emptycrate.com/idocpp ChaiScript Header-only scripting engine designed for embedding in C++ Automatic function / type deduction script function <-> C++ Function interaction 7 . 2Copyright Jason Turner @le�icus emptycrate.com/idocpp ChaiScript Header-only scripting engine designed for embedding in C++ Automatic function / type type deduction Native script function <-> C++ Function interaction Full support for exceptions 7 . 2Copyright Jason Turner @le�icus emptycrate.com/idocpp ChaiScript Header-only scripting engine designed

types is crucial in everyday programming, not just library design. Properly constraining types and function prototypes will result in intuitive usage; conversely, breaking subtle contracts for functions Regular, Revisited 8 Classified The classes we write: RAII Utility Callable Wrappers Function bundles :( Polymorphic types / Hierarchies Containers Values ... "The Evolution of C++ Regular, Revisited 29 Slide Title Type Type is a set of values with the same interpretation function and operations on these values. #define #EoP2023 Victor Ciura | @ciura_victor - Regular

categories of requests 71Compile-time computing 72P2966 requests: compile-time computing • Allow overloading based on constexpr arguments • Has been discussed in the past (through proposals, e.g.: P1045) in some cases • Design space to be explored 73P2966 requests: compile-time computing • Allow overloading based on constexpr arguments • Motivating example: template string MyFormat(constexpr MyFormat(RuntimeFmtString(), someArg); // calls B 74P2966 requests: compile-time computing • Allow overloading based on constexpr arguments • Motivating example: class MyString { // ... public: // A (e

constructor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Explicit virtual function overwrite . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 override . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Explicit delete default function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Strongly typed enumerations . . . . . . . . . . . . . . . . . 39 3.2 Function Object Wrapper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 std::function . . . . . . . . . . . . . . . . . . . . .

C++ Move Semantics Overloading on References ，void foo(const Typea) read-oniy access 一 pass value without creating pepmaaoom 23 Overloading on References ，void foo(const Typea) read-oniy access 一 pass value without creating C++ Move Semantics Overloading on References ，void foo(const Typea) read-oniy access 一 pass value without

are two or more possibilities ○ compile time polymorphism ■ function, method, or constructor overloading ■ invoking the correct function is based on the data type ○ run time polymorphism ■ method overriding correct method based on the object 5Overload Resolution ● Overload vs Override ○ function, method, or constructor overloading ■ multiple declarations which have different signatures ■ main topic for this to the subject of overload resolution 7Overload Resolution ● Overload vs Override ○ operator overloading ■ invokes a different operation for the given operator ■ example: operator+() ● might add two