di Library

A free-standing alternative C++ standard library, using bleeding edge C++ features (C++ 26).

Features

• Free-standing support (can build with no C++ or C standard header files, and replaces exceptions with result types)
• Header only, trivially installable
• Platform independent
  • Certain functionality, like allocation, depends on a default platform allocator. This is suitable for normal applications as well as Operating System kernels.
    • Iros is an minimal kernel built using di.
    • dius is a user space library built using di.
• Wide coverage of C++ library functionality, including:
  • Containers (Vector, String, Ring buffer, Linked list)
  • Vocabulary types (Optional (supports references), Expected, Result, Tuple, Variant, Function)
  • Supports C++ 20 standard range based algorithms and views
  • Formatting (std::format like)
  • Parsing strings
  • Async Execution (p2300) and coroutine support that handles allocation failures
  • CLI argument parser
  • Mini unit test library
  • Verbose static reflection library (hopefully will be obsoleted by C++ someday)
  • Type-erasure library (Any) support using tag_invoke() magic.

Library Component Overview

See here.

Building

See here.

Developing

See here.