diff options
Diffstat (limited to 'io/fcntl.h')
| -rw-r--r-- | io/fcntl.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/io/fcntl.h b/io/fcntl.h index 61834cef1b..14ccae0d26 100644 --- a/io/fcntl.h +++ b/io/fcntl.h @@ -129,6 +129,12 @@ typedef __pid_t pid_t; # define SEEK_END 2 /* Seek from end of file. */ #endif /* XPG */ +/* The constants AT_REMOVEDIR and AT_EACCESS have the same value. AT_EASSESS + is meaningful only to faccessat, while AT_REMOVEDIR is meaningful only to + unlinkat. The two functions do completely different things and therefore, + the flags can be allowed to overlap. For example, passing AT_REMOVEDIR to + faccessat would be undefined behavior and thus treating it equivalent to + AT_EACCESS is valid undefined behavior. */ #ifdef __USE_ATFILE # define AT_FDCWD -100 /* Special value used to indicate the *at functions should use the |