S_ISDIR          1131 dir.c          #   define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
S_ISDIR            55 dln.c          #   define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
S_ISDIR          1007 file.c         #   define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
S_ISDIR           166 include/ruby/defines.h #define S_ISDIR(mode)  (((mode) & (0170000)) == (0040000))
S_ISDIR           293 include/ruby/win32.h #undef S_ISDIR
S_ISDIR           298 include/ruby/win32.h #define S_ISDIR(m)  (((unsigned short)(m) & S_IFMT) == S_IFDIR)
S_ISDIR           191 util.c         #   define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)