S_ISDIR            23 opal/mca/event/libevent2022/libevent/sample/http-server.c #define S_ISDIR(x) (((x) & S_IFMT) == S_IFDIR)
S_ISDIR           529 opal/mca/hwloc/hwloc201/hwloc/include/private/misc.h #    define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
S_ISDIR           144 opal/win32/win_compat.h #define S_ISDIR(STAT_MODE)        ((STAT_MODE) & _S_IFDIR)