Alternatives and similar repositories for wg21

Users that are interested in wg21 are comparing it to the libraries listed below

• DaemonSnake / unconstexpr
  a c++ header library that implements variant constexpr functions and types.
  ☆85Updated 5 years ago
• badair / polyvar
  polymorphism with value semantics (based on std::variant)
  ☆12Updated 9 years ago
• bruxisma / retain-ptr
  WG21 P0468 implementation of an intrusive smart pointer for C++
  ☆58Updated 5 years ago
• martinmoene / observer-ptr-lite
  observer-ptr - An observer_ptr for C++98 and later in a single-file header-only library (Extensions for Library Fundamentals, v2, v3)
  ☆38Updated 2 weeks ago
• andyprowl / virtual-concepts
  A research project aimed at introducing language support for type erasure in C++.
  ☆54Updated 9 years ago
• potswa / cxx_function
  Prototype for new std::function features, compatible with C++11.
  ☆47Updated 5 years ago
• mattcalabrese / argot
  A C++ library that simplifies working with tuples, variants, and more through argument list generation and the ability to convert from ru…
  ☆62Updated 5 years ago
• jamboree / CxxFunctionBenchmark
  benchmark for various C++ function implementations; focus on invocation time
  ☆95Updated 6 years ago
• atomgalaxy / liberasure
  A no-dependencies C++ extensible type erasure library
  ☆44Updated 5 years ago
• soasis / out_ptr
  Repository for a C++11 implementation of std::out_ptr (p1132), as a standalone library!
  ☆77Updated 6 months ago
• SaadAhmad / in_constexpr
  An approach for runtime detection inside a constexpr function
  ☆80Updated 7 years ago
• boostorg / variant2
  A never-valueless, strong guarantee implementation of std::variant
  ☆71Updated last month
• ruslo / leathers
  Warning suppression library (C++)
  ☆83Updated 5 years ago
• zajo / boost-noexcept
  ☆27Updated 7 years ago
• zajo / synapse
  Non-intrusive C++ signal programming library
  ☆50Updated 3 years ago
• AlexBAV / corsl
  Coroutine Support Library
  ☆34Updated last year
• vittorioromeo / orizzonte
  WIP
  ☆27Updated 6 years ago
• hanickadot / static-regexp-old
  Very fast regexp using c++11 templates.
  ☆83Updated 10 years ago
• boostorg / callable_traits
  modern C++ type traits and metafunctions for callable types
  ☆136Updated last month
• SephDB / constexpr-format
  Compile-time printf-like string formatting
  ☆77Updated 7 years ago
• martinmoene / expected-dark
  Expected objects for C++11 and later (and later perhaps C++98 )
  ☆51Updated 7 years ago
• ned14 / stl-header-heft
  Measures how parsing overweight the major STLs have become
  ☆59Updated 4 years ago
• HowardHinnant / hash_append
  Implementation of hash_append proposal
  ☆67Updated 8 years ago
• tahonermann / text_view-range-v3
  A C++11 character encoding and code point enumeration library based on range-v3
  ☆20Updated 7 years ago
• okdshin / unique_resource
  unique_resource, The General RAII Wrapper for Exclusive Ownership Resource Management.
  ☆49Updated last year
• iboB / mscharconv
  <charconv> from Microsoft STL, but multi-platform
  ☆39Updated 6 months ago
• akrzemi1 / compact_optional
  A template for creating optional-like object with no space overhead
  ☆26Updated 8 years ago
• Quuxplusone / ring_view
  std::ring_span (SG14, P0059R1)
  ☆45Updated 8 years ago
• cor3ntin / ext-unicode-db
  ☆17Updated last year
• viboes / std-make
  C++ generic make factory
  ☆108Updated 6 years ago