Index. Dmitri Nesteruk 2018 D. Nesteruk, Design Patterns in Modern C++,

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1 A Abstract factory, Abstract syntax tree (AST), Adapter LineToPointAdapter, 92, 94 rectangles, 91, 93 scenario, temporaries Boost s hash functions, 96 DrawPoints(), 94 hash functions and caching, 97 ReSharper s Generate Hash function, 95 add_child(), 36 Array-backed properties, B BetterFormattedText, 145 Boost.Serialization, 69 Boost s hash functions, 96 Bridge C++ compilers, 99 circle, Pimpl idiom, 102 RasterRenderer, 105 Renderer base class, 102 Shape class, 103 Builder pattern add_child() method, 35, 36 static build() function, 38 communicating intent, complicated objects, 33 composite (see Composite builder) groovy-style, HtmlElement class, 34, 38 Dmitri Nesteruk 2018 D. Nesteruk, Design Patterns in Modern C++, C Chain of responsibility (CoR) broker chain, , 169 characteristic values, 161 CreatureModifier, 162 pointer chain, CLion, 68, 74 Code generation tools, 74 Command design pattern composite command, CQS, , 186 deposit() and withdraw() functions, implementation, undo operations, , 180 Command Query Separation (CQS),

2 Composite array-backed properties, begin()/end() members, duck typing, 108, 118 grouping graphic objects, neural networks (see Neural networks) STL containers, 107 Composite builder class PersonBuilderBase, 43 create() function, 46 friend classes, 46 lives() and works(), operator Person, 44 PersonAddressBuilder, PersonBuilder class, 44 PersonJobBuilder, 46 public and protected constructors, 45 reference-assigning constructor, 44 reference person, 44 Cookie, 139 Copy constructors, Curiously recurring template pattern (CRTP), 5 D Decorator abstract class, shape, 120 Circle/Square, ColoredTransparentShape, 119 dynamic, functional, static, 121, std::vector, 119 Dependency injection, 25 Dependency inversion principle (DIP) concrete implementation, 26 ConsoleLogger, 24, 25, 27 definition, 24 dependency injection, 25 IEngine interface, 26 ILogger interface, 24, 26, 27 make_unique/make_shared, 27 NullEngine, 26 Reporting{ConsoleLogger{}}, 25 shared_ptr<car>, 28 unique_ptr/shared_ptr, 26 DoubleAttack-Modifier method, 170 Double-checked locking, 79 DrinkFactory, 58 Duck typing, 108, 118 Dynamic decorator, , 131 Dynamic strategy, E Event broker, 166 F Façade console,

3 description, 133 financial data, 133 terminal window buffers, screen Linux command, 134 viewport, 134, 136 Factory, 38, 51 abstract, advantages, 61 functional, 59 inner, NewXxx() functions, 53 point constructor, 50, 53 Point-creating functions, 52 PointFactory, 53 polar coordinates, 49 Fluent interface, 36 Flyweight Boost library, 142 implementation, naïve approach, 143, 145 string ranges, 143 user names, Functional decorator, Functional factory, 59 G Game simulation, God Object, 11 Graphic objects, Groovy-style builder, H HotDrinkFactory, 59 I Inner factory, Interface segregation principle (ISP), Interpreter Boost.Spirit, parsing, 197 AST, parser, printer, Compiler Theory, 189 lexer and parser, 197 numeric expression evaluator lexing, parsing, Inversion of control (IoC), 76, 84 Iterator coroutines, standard library, traversing, binary tree, J, K Journal class, 9 L Lazy instantiation, 152 Lexing, Liskov substitution principle (LSP), M Maybe Monad drilling-down process,

4 Maybe Monad (cont.) fluent interface, 308 higher-order function, 307 member function, 307 nullptr approach, 305 Mediator chat room, events, Memento bank account, undo and redo command, , 235 Microsoft Foundation Classes (MFC), 91 Mixin inheritance, 6 Monostate, N Neural networks connect_to(), 116 id field, 114 machine learning, 114 neuron, 114 NeuronLayers, 115, 117 SomeNeurons&, 117 SomeNeurons::connect_to(), 117 SomeNeurons <NeuronRing>, 118 Null object BankAccount s constructor, 239 design improvements, 240 implicit, interface, shared_ptr, O Observer Boost.Signals2, dependency problems, infrastructure, 248 observable<t>, observer<t>, property, reentrancy, unsubscription and thread safety, Opaque pointer, 102 Open-closed principle (OCP) color filter, 15 composite specification, 16, 17 filter(), 14 Filter<T>, 18 product color and size, 11, 13, 16 filtering, ProductFilter.cpp, 12 specification interface, 13 Specification<T>, 14 15, 17 P, Q Pimpl idiom advantages, 101 opaque pointer, 102 Person class, PersonImpl, 100 Person::greet(), 100 PointFactory, 53 process_command(), 184

5 Property, C++, 7 Prototype duplication copy construction, ordinary, factory, implementation, 74 object construction, serialization, Proxy communication, 154, property, smart pointer, virtual, 152, 154 R ReSharper, 67 68, 74 S Serialization, Simple builder, 35 Single responsibility principle (SRP), 8 10 Singleton classic implementation copy/move constructor/ assignment operators, 78 database, 78 get(), 78 global static Database, 77 member function, 77 thread safety, description, 75 global object, IoC, 84 Monostate, trouble with ConfigurableRecordFinder, 82 dummy database, SingletonDatabase, 80 SingletonRecordFinder, 82 Skipping, 197 SOLID design principles DIP, 24 ISP, LSP, OCP, SRP, 8 10 State design pattern Boost.MSM, handmade state machine, state-driven state transitions, trigger, 259 Static decorator, , 132 Static strategy, 278 Strategy dynamic, HTML/LaTeX, 273 static, 278 T, U TeaFactory, 58 Thread safety, Token, 139 Traversal,

6 V, W, X, Y, Z Visitor acyclic, classic, dispatch, expression, implementation, intrusive, reflective printer, variants and std::visit,