D (Programming Language)

Website

dlang.org

Pricing URL

-

$ Details

Categories

#Programming Language #OOP #Generic Programming Language #Dynamic Programming Language

Free Pascal

Website

freepascal.org

Pricing URL

Official Free Pascal Pricing

$ Details

-

Categories

#IDE #Text Editors #Programming Language #OOP

D (Programming Language) features and specs

• Performance
  D is designed to be a high-performance systems programming language, offering performance comparable to C and C++ through native machine code compilation.
• Expressiveness
  D features a rich standard library and modern language constructs, such as garbage collection, first-class arrays, and advanced templating, making it easier to write expressive and maintainable code.
• Memory Safety
  D offers optional garbage collection along with manual memory management. This hybrid approach can help in developing safer applications by reducing memory-related errors.
• Interoperability
  D can easily interoperate with C API, enabling seamless integration with existing C libraries and systems. It also supports better C++ interoperability compared to other languages.
• Built-in Unit Testing
  D has built-in support for unit tests, allowing developers to write and run tests as part of the language itself, facilitating test-driven development.
• Concurrency
  D offers built-in concurrency support with message passing, similar to the actor model found in languages like Erlang, making it easier to write concurrent and parallel programs.

Possible disadvantages of D (Programming Language)

• Adoption
  D is not as widely adopted as other languages like C, C++, or Java. This limited adoption means fewer libraries, frameworks, and community support.
• Toolchain Maturity
  While D's compilers and tools have improved over the years, they may still lack the maturity and feature set of more established languages, which can affect developer productivity.
• Learning Curve
  D's richness and combination of paradigms (such as imperative, object-oriented, and functional programming) can present a steep learning curve for new developers.
• Garbage Collection
  Although D offers optional garbage collection, its reliance on it for memory safety might be seen as a drawback for real-time system development where deterministic memory management is crucial.
• Ecosystem
  The ecosystem for D is less vibrant compared to more popular languages, leading to potentially fewer third-party libraries, tools, and resources.
• Standard Library Documentation
  The standard library documentation can be inconsistent or less comprehensive compared to other languages, making it difficult for developers to fully utilize all features of the language.

Free Pascal features and specs

• Cross-platform Compatibility
  Free Pascal supports a wide range of platforms, including Windows, macOS, Linux, and more. This allows developers to write code that can be compiled and executed on multiple operating systems without extensive modifications.
• Open Source
  As an open-source compiler, Free Pascal is freely available for use and modification. This openness encourages community collaboration and continuous improvement of the software.
• Strong Community Support
  Free Pascal has a dedicated and active community, providing extensive documentation, forums, and user support, which can be invaluable for troubleshooting and learning.
• Compatibility with Delphi
  The compiler aims to be highly compatible with Delphi, making it easier for Delphi developers to transition their applications to Free Pascal with minimal changes.
• Rich Set of Libraries
  Free Pascal comes with a comprehensive set of libraries and tools, allowing developers to create a variety of applications, from small utilities to complex software systems.

Possible disadvantages of Free Pascal

• Steep Learning Curve
  For developers unfamiliar with Pascal, the language and its concepts may present a learning challenge compared to more modern languages such as Python or JavaScript.
• Limited GUI Toolkit Support
  While Free Pascal does support some GUI toolkits, it may not have as robust or modern GUI options compared to other programming environments, which can be a limitation for developing desktop applications.
• Less Popular
  Pascal is not as widely used in the programming community as other languages like Java or Python, which can result in fewer third-party tools, libraries, and resources.
• Performance Overheads
  While Free Pascal is generally efficient, there can be some performance overheads compared with compilers specifically optimized for newer languages and architectures.
• Limited Modern Language Features
  Free Pascal might lack some of the modern programming features found in newer languages, which can be a disadvantage for developers looking to use the latest paradigms and practices.

D Language Tutorial

Tin 8. Bài Thực hành 1: Làm quen với Free pascal.