formatxx | modern c

formatxx is a C++ library. formatxx has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

formatxx is a modern C++ string formatting library. Its intended goals are to offer fast compilation times, minimal binary bloat, and reasonable speed. Final measurements of these goals are not yet available; the library is still in preliminary development. The library supports writing primitive types as well as user-defined types into string formatting buffers. The libray has as little dependence on the C++ standard library as possible, which is intended to make it a very light header to include throughout a larger C++ project. The included string writers allow for formatting into a std::string-compatible type, a fixed- size buffer with guaranteed no allocations, or a buffer that initially has a fixed-size buffer but can grow to accomodate larger strings. The combination of these buffers allow for easy use in three major cases: quick creation of std::string values, use in assert handlers that cannot allocate, and use in log systems where allocation should be avoided but is allowed when necessary. Users can easily write their own buffer systems as well. The underlying method of operation of formatxx is to collect a list of arguments via variadic templates, lookup a format_value function for each of those arguments, and then pass the format string, an array of format functions, and an array of void pointers to arguments into the the actual formatting function. Builtin C++ types go through a slightly different mechanism for the sake of avoiding excessing ADL noise. The header mechanisms that generate these lists of functions and pointers are intended to be light-weight on the compiler to the extent reasonable. The actual formatting work is all implemented in a source file and not the header, to keep the header small and cheap to include.