Panda-Lib

Panda-Lib is a C++ library with basic functionality. It contains implementation of string, function, pool allocator, error handling and a some others. It is not yet another std implementation. Some classes are similar to std ones, i.e. panda::string is effective replacement of std::string.

Build and Install

Panda-Lib is suppose to be built with CMake.

mkdir build
cd build
cmake ..
cmake --build .
cmake --build . --target install

Dependencies

Lib itself does not depend on anything but it use Catch2 for tests. By default tests are disabled. Set PANDALIB_TESTS=ON to build tests and make sure that find_package can find Catch2.

Documentation

All documentation is in doc folder.

Main features

• panda::string - optimized std compatible string with CoW and SSO
• Error Handling - error types overview and usefull tools such as expected and backtrace
• CallbackDispatcher - implementation of Event Listener pattern based on custom implementation of function type
• Logger - simple API for logs with lazy evaluation and flexible management
• memory - fast allocators and helpers
• iptr - smart pointer based on intrusive reference counter

Tools and helperes

• dyn_cast - Caching wrapper of dynamic_cast. It stores a static cache by types and type_id to make dynamic_cast faster
• endian.h - endian conversions for all integer types
• hash.h - hash algorithms (hash_murmur64a, hash_jenkins_one_at_a_time)
• make_iterator_pair - make range from iterator pair
• owning_list - linked list that guaraties iterator validity in any case of deletion or insertion. Importatnt part of CallbackDispatcher implementation
• Macro Overload - preprocessor macro overloading by number of arguments
• String Containers - map/set, unordered_map/unordered_set by string that alowed look up with string_view without creation of a string object.
• traits.h - some type traits for meta programming.
• VarIntStack - stack of integerss stored as compact as possible using variadic int compression. Does not allocate untill container is less than 22 bytes (x64).

Old C++ standard support

• optional.h - implementation of the latest C++20 optional API for C++14.
• from_chars.h - from_chars and to_chars functions for C++14.
• string_view.h - string_view for C++14.