S_ISCHR          1150 file.c         #   define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
S_ISCHR           163 include/ruby/defines.h #define S_ISCHR(mode)  (((mode) & (0170000)) == (0020000))
S_ISCHR           296 include/ruby/win32.h #undef S_ISCHR
S_ISCHR           301 include/ruby/win32.h #define S_ISCHR(m)  (((unsigned short)(m) & S_IFMT) == S_IFCHR)