fmtlib/fmt

[]( https://github.com/fmtlib/fmt/actions?query=workflow%3Alinux) []( https://github.com/fmtlib/fmt/actions?query=workflow%3Amacos) []( https://github.com/fmtlib/fmt/actions?query=workflow%3Awindows) []( https://issues.oss-fuzz.com/issues?q=title:fmt%20cc:victor.zverovich@gmail.com) []( https://www.bestpractices.dev/projects/8880) []( https://securityscorecards.dev/viewer/?uri=github.com/fmtlib/fmt) [](https://stackoverflow.com/questions/tagged/fmt) [](https://novaukraine.org/) {fmt} is an open-source formatting library providing a fast and safe alternative to C stdio and C++ iostreams. Documentation Cheat Sheets Q&A: ask questions on StackOverflow with the tag fmt. Try {fmt} in Compiler Explorer. [](https://build.demoshell.com/launch?snapshot=demoshell%2Ftools%3Afmt) arguments for localization std::format](https://en.cppreference.com/w/cpp/utility/format) and C++23 std::print to Python\'s format shortness and round-trip guarantees using the Dragonbox algorithm implementation](https://fmt.dev/latest/api/#printf-api) including the POSIX extension for positional arguments types](https://fmt.dev/latest/api/#formatting-user-defined-types) implementations of (s)printf, iostreams, tostring and tochars, see Speed tests and Converting a hundred million integers to strings per second configuration consisting of just three files, core.h, format.h and format-inl.h, and compiled code; see Compile time and code bloat tests and is continuously fuzzed be reported at compile time, automatic memory management prevents buffer overflow errors dependencies, permissive MIT license consistent…