{"id":60607,"library":"flagpp","title":"flagpp","description":"A C++20 library that provides opt-in bit-wise operations for arbitrary enum classes.","status":"active","version":"3.1.0","language":"cpp","source_language":null,"source_url":null,"tags":["enum","bitwise","flags","c++20"],"install":[{"cmd":"vcpkg install flagpp","lang":"bash","label":"vcpkg"},{"cmd":"# CMakeLists.txt\nfind_package(flagpp CONFIG REQUIRED)\ntarget_link_libraries(main PRIVATE flagpp::flagpp)","lang":"cmake","label":"CMake"}],"dependencies":[],"imports":[{"symbol":"flagpp/flagpp.hpp","correct":"#include <flagpp/flagpp.hpp>"}],"quickstart":{"code":"#include \"flagpp/flagpp.hpp\"\n#include <iostream>\n\nenum class Flags : unsigned {\n    None = 0,\n    Read = 1 << 0,\n    Write = 1 << 1,\n    Execute = 1 << 2\n};\n\n// Enable bitwise operations for this enum\nFLAGPP_ENABLE(Flags);\n\nint main() {\n    Flags f = Flags::Read | Flags::Write;\n    \n    if (f & Flags::Read) {\n        std::cout << \"Read permission set\" << std::endl;\n    }\n    \n    f |= Flags::Execute;\n    std::cout << \"Combined flags: \" << static_cast<unsigned>(f) << std::endl;\n    \n    return 0;\n}","lang":"cpp","description":"Define an enum class with bitwise operations using flagpp"},"warnings":[{"fix":"Ensure your compiler supports C++20 and place FLAGPP_ENABLE(EnumName) outside any namespace.","message":"flagpp requires C++20 and the FLAGPP_ENABLE macro must be invoked in the global namespace for each enum class.","severity":"gotcha","affected_versions":"*"}],"env_vars":null,"search_vec":"'+20':4,23 'arbitrari':16 'bit':12 'bit-wis':11 'bitwis':20 'c':3,22 'class':18 'enum':17,19 'flag':21 'flagpp':1 'librari':5 'oper':14 'opt':9 'opt-in':8 'provid':7 'wise':13","created_at":"2026-06-16T19:37:43.544252+00:00","updated_at":"2026-06-16T19:37:43.544252+00:00","problems":[],"ecosystem":"vcpkg","meta_description":null,"install_score":null,"quickstart_score":null,"quickstart_tag":null,"pypi_latest":null,"cli_name":null,"cli_version":null,"type":"library","homepage":null,"github":null,"docs":null,"changelog":null,"pypi":null,"npm":null,"openapi_spec":null,"status_page":null,"smithery":null,"categories":["utility"],"base_url":null,"auth_type":null,"provenance":{"verified_status":null,"verified_at":null,"last_verified":"2026-06-17","next_check":"2026-12-14","install_tag":null}}