Tricks ## About the talk • Expressiveness in C++ • Parsers • Operator overloading • Domain specific languages • Open source compile-time libraries • API • Design • Implementation details • Using functions for specific types. std::️缝系统::️path p = "C:"; return concat(concat(concat(p, "files"), "images"), "cat.png"); std::️️️‍♀️‍♀️‍♀️‍ ## DSL - Domain Specific Language Language A programming language tailored to solve problems within a specific domain or application context. Examples: • SQL · CSS • Regular Expressions (PCRE) • Make (makefile) ## DSL Example – Boost Spirit

2020 2/04: Streaming languages and operator semantics Vasiliki (Vasia) Kalavri vkalavri@bu.edu ## Languages for continuous data processing ## Language Types • Transforming languages define transformations and produce output streams. - Declarative languages specify the expected results of the computation rather than the execution flow. • Imperative languages are used to describe plans of operators the the streams must flow through. • Pattern-based languages specify conditions and actions to be taken when conditions are met. - Conditions are commonly described as patterns that can match input stream events

1 billion USD to develop Debian 3.0. In addition, we offer both an analysis of the programming languages used in the distribution (C amounts for about 65%, C++ for about 12%, Shell for about 8% and LISP development mail lists, etc.), several translation and internationalization efforts, development of tools specific to Debian, and in a wide sense, of all the infrastructure that makes the Debian distribution possible physical SLOC of the release, the SLOC for each package, the SLOC for each of several programming languages considered, etc. In the following sections these three steps are described in more detail. ###

contained reusable software • Abstraction layer • Language within a programming language ☐ Domain specific language (DSL) • Building blocks - Simple interface (API) with tricky implementation • Vocabulary • Algorithms are everywhere ☐ Not just in CS textbooks • Can be found in many places ☐ Other languages ☐ Other libraries ☐ Research papers ☐ Your own codebase Stepanov on Science link STL and its iterator-based algorithms o Fundamentals of functional / vectoric languages (APL, BQN, R, Julia, NumPy) Conor Hoekstra ☐ Libraries of similar languages (D, Rust, Java) Barry Revzin. ## • Main Innovation - Composability

programming language enthusiast • I love algorithms and beautiful code • Organizer of Programming Languages Virtual Meetup • I have a YouTube channel ## 入 , and named but important paradigms that greatly simplify concurrent programming with respect to mainstream languages: declarative concurrency (both eager and lazy), functional reactive programming, discrete synchronous

251 6.8 Reverse Proxy Guide 254 6.9 HTTP/2 guide 261 ## CONTENTS 7 Platform-specific Notes 267 7.1 Platform Specific Notes 268 7.2 Using Apache HTTP Server on Microsoft Windows 269 7.3 Compiling all granted In the following example, there is no authentication and all hosts in the example.org domain are allowed access; all other hosts are denied access. ### 2.2 configuration: Order Deny, Allow in large numbers. The source address used for proxy requests is now configurable. Support for Unix domain sockets to the backend (available in 2.4.7 and later). MOD_PROXY_BALANCER More runtime configuration

Synchronization Patterns Concurrent Architecture ## Dealing with Sharing ■ Copied Value ■ Thread-Specific Storage ■ Future ## Dealing with Mutation ■ Scoped Locking ■ Strategized Locking ■ Thread-Safe Synchronization Patterns Concurrent Architecture ## Dealing with Sharing ◼ Copied Value ■ Thread-Specific Storage ■ Future Active Object ## Dealing with Mutation ■ Scoped Locking ■ Strategized Locking 8c2d920cfe/p8_1.jpg) → Data races or lifetime issues are not possible. ## Thread-Specific Storage Thread-specific storage enables global state within a thread. ■ Typical use-cases: ■ Porting a single-thread

.htaccess files 237 6.7 Per-user web directories 242 ## CONTENTS 7 Platform-specific Notes 245 7.1 Platform Specific Notes 246 7.2 Using Apache HTTP Server on Microsoft Windows 247 7.3 Compiling ### 2.4 configuration: Require all granted In the following example, all hosts in the example.org domain are allowed access; all other hosts are denied access. ### 2.2 configuration: Order Deny, Allow stable on non-Unix platforms such as BeOS, OS/2, and Windows. With the introduction of platform-specific multi-processing modules (p. 79) (MPMs) and the Apache Portable Runtime (APR), these platforms are

Server Tutorial: .htaccess files 237 6.7 Per-user web directories 242 7 Platform-specific Notes 245 7.1 Platform Specific Notes 246 7.2 Using Apache HTTP Server on Microsoft Windows 247 7.3 Compiling ### 2.4 configuration: Require all granted In the following example, all hosts in the example.org domain are allowed access; all other hosts are denied access. ### 2.2 configuration: Order Deny, Allow stable on non-Unix platforms such as BeOS, OS/2, and Windows. With the introduction of platform-specific multi-processing modules (p. 79) (MPMs) and the Apache Portable Runtime (APR), these platforms are

support multiple-column primary keys? ■ Does Django support NoSQL databases? How do I add database-specific options to my CREATE TABLE statements, such as specifying MyISAM as the table type? ## • FAQ: The trouble? We’d like to help! • Try the FAQ – it’s got answers to many common questions. • Looking for specific information? Try the Index, Module Index or the detailed table of contents. - Search for information Supported databases | Legacy databases | Providing initial data | Optimize database access | PostgreSQL specific features ## The view layer Django has the concept of “views” to encapsulate the logic responsible