The first three parts are live:
C++20 Formatting Library
by Gajendra Gulgulia
From the lead article:
At the time of writing this series, the header
formatis not yet integrated into latest gcc or clang compiler. According to reference the only two compilers that have so far implemented the standard text formatting libraries are clang-14* and msvc 19.29. Due to limitations in my personal computer, I’ll therefore be using the fmt library on which the standard string formatting library is based. When the compiler support is released, the token
fmt::formatcan be replaced with
std::formatand the examples in the series should work as it is. ...