31 Input/output library [input.output]

31.12 File systems [filesystems]

31.12.6 Class path [fs.class.path]

31.12.6.9 Formatting support [fs.path.fmtr]

31.12.6.9.1 Formatting support overview [fs.path.fmtr.general]

namespace std { template<class charT> struct formatter<filesystem::path, charT> { constexpr void set_debug_format(); constexpr typename basic_format_parse_context<charT>::iterator parse(basic_format_parse_context<charT>& ctx); template<class FormatContext> typename FormatContext::iterator format(const filesystem::path& path, FormatContext& ctx) const; }; }