BasedOnStyle: InheritParentConfig SortIncludes: true IncludeBlocks: Regroup IncludeCategories: # Python.h must be first - Regex: '^' Priority: -1 # Implicitly the corresponding header for the C file has Priority 0 # C Standard Library Headers - Regex: '^<(assert|complex|ctype|errno|fenv|float|inttypes|iso646|limits|locale|math|setjmp|signal|stdalign|stdarg|stdatomic|stdbit|stdbool|stdckdint|stddef|stdint|stdio|stdlib|stdnoreturn|string|tgmath|threads|time|uchar|wchar|wctype)\.h>' Priority: 1 # OS/System-Specific Headers (directories) - Regex: '^<(arpa|asm|asm-generic|linux|machine|net|netinet|sys|uapi|x86_64)/.*>' Priority: 2 # OS/System-Specific Headers (POSIX/System flat headers) - Regex: '^<(aio|byteswap|dirent|dlfcn|elf|endian|err|execinfo|fcntl|features|fnmatch|ftw|gelf|getopt|grp|ifaddrs|libelf|libgen|malloc|memory|mntent|netdb|numa|numaif|paths|poll|pthread|pty|pwd|regex|resolv|sched|semaphore|spawn|strings|syscall|sysexits|syslog|termios|unistd|utmp|x86intrin)\.h>' Priority: 2 # Third-Party Library Headers - Regex: '^<.*>' Priority: 3 # Your Project's Other Headers - Regex: '^".*"' Priority: 4